After a 15-year dormancy, the 0.8m-Calar-Alto-Schmidt-Telescope (Spain), formerly known as Large-Hamburg-Schmidt-Telescope, is back in operation since September 2015 and has got the IAU-Observatory-Code Z84, see M.P.C. 95313. The reanimation was funded by the European Space Agency (ESA). Since 2016, I have the possibility to use it remote controlled as volunteer scientist to observe Near-Earth Objects (NEOs) for predicting impact probabilities. I discovered the NEO 2022 DX on 2022-02-22, see ESA Newsletter, which is the first NEO-discovery since the Telescope was shipped in 1975 from Hamburg Observatory to Calar Alto. I also succeeded the second NEO-discovery 2023 RY3, which I found on 2023-09-09, see MPEC 2023-R124

Calar Alto Schmidt Teleskop, formerly known as „Großer-Hamburger-Schmidtspiegel“: Diameter of Korrection plate (material UBK 7) Ø = 0.8 m Diameter of Mirror (Material ZK 7) Ø = 1.2 m radius of curvature: 5 m Focal length: 2.4 m    f/3 Construction year: 1954. Manufacturer: Carl Zeiss Jena, Germany. Shipped to Calar Alto in 1975 and installed at new mounting from Grubb-Parsons. SBIG ST-10XME from 2016-12 until 2019-12, Field of View 21.3’x14.3′. FLI ProLine PL230-42 since 2020-01, Field of View 44.0’x44.4′, Pixel Size 1.29″x1.29″. Historical informations can be found in the book „Sterne über Hamburg“ (in German) from Jochen Schramm and here Birkle, Belleman, Elsässer 1994

. Calar Alto Schmidt Teleskop

Second observing period started in 2019 May

MPECs and CBETs by using the Calar Alto Schmidt – IAU-Observatory Code Z84

Observations and published Circulars (MPECs and CBETs) by using the Calar Alto Schmidt (IAU-Observatory Code Z84) in first observing period from 2016-12 until 2018-04

COMET P/2018 H2 (PANSTARRS) (Apr. 26) [see MPEC 2018-H93]
2017 DO36 (2018 Apr. 19) [see MPEC 2018-H40] NEO – RECOVERY
2018 HE = ZH8A93E (Apr. 18.74 UT) [see MPEC 2018-H39]
2018 HC = ZH888D8 (Apr. 18.74 UT) [see MPEC 2018-H37]
2018 HB = ZH87BE7 (Apr. 18.74 UT) [see MPEC 2018-H36]
COMET P/2011 CR42 = 2018 H1 (CATALINA) (2018 Apr. 18) [see MPEC 2018-H30]; CBET4510 COMET-RECOVERY => Calar-Alto-News
2018 GG₅ = ZG3F4C3 (Apr. 17.55 UT) [see MPEC 2018-H20]
2018 GJ₅ = ZG8679C (Apr. 17.55 UT) [see MPEC 2018-H19]
Comet P/2003 L1 (Scotti) – 2018-04-09 – not found with Vlimit 20.5mag and 1.5sigma-uncertainty coverage
COMET C/2018 C2 (Lemmon) (Mar. 28) [see MPEC 2018-F136]
2018 FU₄ = ZFB2EC6 (Mar. 24.69 UT) [see MPEC 2018-F123]
2018 FQ₄ = ZF30FF4 (Mar. 23.62 UT) [see MPEC 2018-F118]
2018 FX₃ = ZFAE579 (Mar. 22.62 UT) [see MPEC 2018-F104]
COMET P/2005 JN = 2018 F2 (SPACEWATCH)  (2018 Mar. 21) [see MPEC 2018-F85] ; CBET4497 COMET-RECOVERY
2018 DF₁ = ZD8CFFB (Feb. 25.68 UT) [see MPEC 2018-D69]
2018 DK₁ = ZD90AA2 (Feb. 25.69 UT) [see MPEC 2018-D65]
2018 DG₁ = ZD19BF2 (Feb. 25.68 UT) [see MPEC 2018-D62]
2018 DB₁ = ZD8F271 (Feb. 25.66 UT) [see MPEC 2018-D57]
2018 CP₁₄ = A106qxc (Feb. 17.68 UT) [see MPEC 2018-D20]
Comet P/2005 Y2 (McNaught) – 2018-02-17 – not found with Vlimit 21.5mag and 3sigma-uncertainty coverage
2018 CE₁₄ = P10Gxql (Feb. 16.83 UT) [see MPEC 2018-D12]
2018 CC₁₄ = P10Gxq0 (Feb. 16.83 UT) [see MPEC 2018-D10]
2018 CB₁₄ = P10Gxq1 (Feb. 16.83 UT) [see MPEC 2018-D9]
1999 FN19  (2018 Feb. 15) [see MPEC 2018-C111] NEO – RECOVERY
2018 BK₅ = ZBAA6AE (Jan. 25.80 UT) [see MPEC 2018-B128]
2018 BG₅ = ZB039F0 (Jan. 25.80 UT) [see MPEC 2018-B126]
2018 BE₅ = ZBA77E4 (Jan. 25.79 UT) [see MPEC 2018-B134]
COMET C/2018 A6 = ZAA01CF (Jan. 23.65 UT) [see MPEC 2018-B100]
COMET P/2013 CU129 = 2018 A2 (PANSTARRS) (2018 Jan. 17) [see MPEC 2018-B14]; CBET 4474 – COMET-RECOVERY > Animation
2018 AM₁₂ = P10G8tt (Jan. 17.99 UT) [see MPEC 2018-B27] determination of rotation period submitted for publication to the Minor Planet Bulletin
2018 AV₁₁ = ZA9ACCC (Jan. 16.84 UT) [see MPEC 2018-B3]
2018 AX₃ = ZA9568C (Jan. 15.75 UT) [see MPEC 2018-A81]
2018 AR₂ = ZA92B24 (Jan. 14.04 UT) [see MPEC 2018-A58]
2017 YU₁ = P10Fy15 (Dec. 24.17 UT) [see MPEC 2017-Y76]
2017 YR₁ = YY28336 (Dec. 24.17 UT) [see MPEC 2017-Y74]
2017 YE₁ = YYB9DC0 (Dec. 23.86 UT) [see MPEC 2017-Y60]
2017 YG₁ = YY2816B (Dec. 23.74 UT) [see MPEC 2017-Y62]
2017 XE₆₂ = YXADA64 (Dec. 19.59 UT) [see MPEC 2017-Y41]
2017 XX₂ = YXA5DF8 (Dec. 14.63 UT) [see MPEC 2017-X130]
2017 XU₂ = P10Fqlf (Dec. 14.69 UT) [see MPEC 2017-X127]
2017 XD₂ = YXA34F8 (Dec. 14.63 UT) [see MPEC 2017-X113]
2007 KE = YXA6E39 (Dec. 13.94 UT) [see MPEC 2017-X103]
2017 WZ₁₂ = P10F4W9 (Nov. 24.96 UT) [see MPEC 2017-W126]
P/2001 T3 (NEAT) – 2017-11-22 – not found, Vlimit=21.0mag, 3sigma-uncertainty +-22arcmin, 3 fileds covered
2017 WK₁ = P10ESaV (Nov. 20.84 UT) [see MPEC 2017-W81]
COMET P/2017 W1 = P/2011 VJ5 (LEMMON) (Nov. 19.85 UT) [see MPEC 2017-W73];  CBET 4455 – COMET-RECOVERY
2017 VD₁₅ = YV0D520 (Nov. 17.69 UT) [see MPEC 2017-W38]
2017 VE₁₄ = YVBAC9E (Nov. 16.66 UT)  [see MPEC 2017-W18]
2017 VB₁₃ = YVB2AF9 (Nov. 15.71 UT) [see MPEC 2017-V90]
2017 VU₁₂ = P10EMMu (Nov. 14.81 UT) [see MPEC 2017-V74]
2017 VN₂ = YVB19EB (Nov. 14.14 UT) [see MPEC 2017-V68]
2017 VC₂ = A104VWG (Nov. 13.15 UT) [see MPEC 2017-V56]
2017 UX₅₁ = P10EpAY (Nov. 12.97 UT) [see MPEC 2017-V47]
2017 UW₅₁ = YU9F4AA (Nov. 12.97 UT) [see MPEC 2017-V46]
2017 VL₁ = P10EHCr (Nov. 12.03 UT) [see MPEC 2017-V44]
Comet P/2001 T3 (NEAT) – 2017-11-10 – not found, Vlimit=21.5mag, 3sigma-uncertainty +-20arcmin
Comet P/2008 CL94 ( Lemmon ) – 2017-11-08 – not found, Vlimit=21mag, 3sigma-uncertainty +-6arcmin
2017 UQ₇ = YUA88B5 (Oct. 29.09 UT) [see MPEC 2017-U254]
COMET C/2017 T3 = A104vfJ (Oct. 28.14 UT) [see MPEC 2017-U238]; CBET 4449
2017 UA₆ = YUA0A61 (Oct. 27.05 UT) [see MPEC 2017-U231]
2017 UH₆ = YUA5A69 (Oct. 27.03 UT) [see MPEC 2017-U226]
2017 UG₆ = YUA559C (Oct. 27.02 UT) [see MPEC 2017-U225]
2017 UE₃ = YU932A2 (Oct. 24.01 UT) [see MPEC 2017-U173]
2017 UU₂ = YU9308E (Oct. 22.60 UT) [see MPEC 2017-U167]
2017 SN₃₃ = P10Dm7l (Oct. 22.58 UT) [see MPEC 2017-U156]
2017 UJ₂ = YU36830 (Oct. 22.48 UT) [see MPEC 2017-U154] > Animation  very close approach, only 11500 Km from earth surface
2017 SZ₂₀ = YSBBC7A (Oct. 1.61 UT) [see MPEC 2017-T8]
2017 SX₁₇ = YSBC713 (Sept. 29.93 UT) [see MPEC 2017-S214]
2017 SH₁₀ = P10Dkfo (Sept. 22.69 UT) [see MPEC 2017-S101]
COMET P/2010 P4 = 2017 S1 (WISE) (2017 Sept. 20) see MPEC 2017-S90 ; CBET4429 – COMET-RECOVERY
2017 SP₂ = YS174DB (Sept. 20.08 UT) [see MPEC 2017-S83]
2017 RX₁ = A103Ple (Sept. 14.10 UT) [see MPEC 2017-R56]
2017 RW₁ = P10CXIA (Sept. 14.09 UT) [see MPEC 2017-R55]
2017 QR₁ = P10CvTH (Aug. 20.10 UT) [see MPEC 2017-Q53]
2017 QT₁ = P10CwAs (Aug. 20.09 UT) [see MPEC 2017-Q55]
2017 QN = P10CrXw (Aug. 18.93 UT) [see MPEC 2017-Q37]
2017 PY₂₆ = A103nTg (Aug. 18.91 UT) [see MPEC 2017-Q43]
2017 QB = A103rPg (Aug. 17.73 UT) [see MPEC 2017-Q22]
2017 OP₁ = OG14495 (July 25.73 UT) [see MPEC 2017-O51] – observation from collaborator M. Micheli
2014 QE₃₆₅  (July 22.02 UT) [see MPEC 2017-O28] – RECOVERY – observation from collaborators C. Avdellidou, M. Micheli, M. Delbo‘
Comet C/2017 M5 (TOTAS) = OG14001 (July 1.61 UT) [see MPEC 2017-N25];  CBET 4410
2017 MV₇ = A102O8V (July 1.19 UT) [see MPEC 2017-N18]
2017 MM₇ = YM9FDC9 (July 1.16 UT) [see MPEC 2017-N20]
COMET C/2017 M4 (ATLAS) = A102KOU (June 23.65 UT) [see MPEC 2017-M45]
2017 MJ = YM9EFAE (June 21.10 UT) [see MPEC 2017-M34]
2017 MH = YM9ECD8 (June 21.10 UT) [see MPEC 2017-M33]
2017 LG₁ = YL9E1A8 (June 17.05 UT) [see MPEC 2017-M4]
2017 HU₄₉ = YH84B17 (May 2.14 UT) [see MPEC 2017-J27]
2017 HH₂ = P10ATD9 (Apr. 22.97 UT) [see MPEC 2017-H46]
2017 GH₄ = P10AF1T (Apr. 4.74 UT) [see MPEC 2017-G38]
2017 FT₁₂₈ = YFA8360 (Apr. 2.79 UT) [see MPEC 2017-G22]
2017 FR₁₂₈ = YFA7F76 (Apr. 2.78 UT) [see MPEC 2017-G19]
2017 FQ₁₂₈ = YFA7C9E (Apr. 2.78 UT) [see MPEC 2017-G18]
2017 FU₁₀₁ = YFA4E47 (Mar. 29.09 UT) [see MPEC 2017-F181]
2017 FZ₆₄ = YF9A829 (Mar. 24.85 UT) [see MPEC 2017-F114]
2017 FR₆₃ = YF9A665 (Mar. 23.69 UT) [see MPEC 2017-F92]
2017 FX = P10A2wv (Mar. 20.79 UT) [see MPEC 2017-F32]
2017 FU = YF8EBA4 (Mar. 19.58 UT) [see MPEC 2017-F25]
2017 FK = YF8E95A (Mar. 18.64 UT) [see MPEC 2017-F16]
2017 DB₁₀₉ = LM076C1 (Mar. 1.63 UT) [see MPEC 2017-E13]
2017 DA₃₈ = YD1ED92 (Feb. 28.75 UT) [see MPEC 2017-D104]
2017 DY₃₇ = YDBF763 (Feb. 28.72 UT) [see MPEC 2017-D103]
2017 DX₃₇ = YDBF5A1 (Feb. 28.72 UT) [see MPEC 2017-D102]
COMET C/2017 C2 = P10zmst (Feb. 19.68 UT) [see MPEC 2017-D22]
2017 CW₃₂ = YCAD73A (Feb. 19.65 UT)
2017 DF = YDB603A (Feb. 18.20 UT) [see MPEC 2017-D16]
2017 DB = YDB5CA2 (Feb. 18.20 UT) [see MPEC 2017-D17]
2017 DC = YDB5C97 (Feb. 18.20 UT) [see MPEC 2017-D13]
2017 DE = A101RQv (Feb. 18.20 UT) [see MPEC 2017-D15]
2017 BS₉₃ = YBA3CB8 (Feb. 3.08 UT) [see MPEC 2017-C25]
2017 BN₉₂ = JAX505 (Feb. 1.84 UT) [see MPEC 2017-C15]
2017 BL₉₂ = YBA20B3
2017 BJ₉₂ = YBA2044 (Feb. 1.52 UT) [see MPEC 2017-C11]
2017 BK₉₂ = YBA2043 (Feb. 1.51 UT) [see MPEC 2017-C12]
2017 BR₃₂ = YBA25D4 (Jan. 31.52 UT) [see MPEC 2017-B158]
2017 BM₃₂ = YBA068C (Jan. 31.50 UT) [see MPEC 2017-B153]
2017 BL₃₂ = YBA0644 (Jan. 31.50 UT) [see MPEC 2017-B152]
2017 BZ₅ = A101I1d (Jan. 27.82 UT) [see MPEC 2017-B77]
2017 BS₅ = A101IiK (Jan. 26.64 UT) [see MPEC 2017-B69]
2017 AA₁₄ = YAC4033 (Jan. 9.69 UT) [see MPEC 2017-A70]
2017 AO₁₃ = YA0C0C4 (Jan. 9.14 UT) [see MPEC 2017-A64]
2017 AK₁₃ = YA8C4C5 (Jan. 8.91 UT) [see MPEC 2017-A61]
2017 AF₁₃ = YA8B76B (Jan. 8.63 UT) [see MPEC 2017-A57] > Animation
2016 YB₁₁ = XY85E13 (Jan. 1.94 UT) [see MPEC 2017-A6]
2012 YN₁ = XY85F37 (Dec. 30.93 UT) [see MPEC 2016-Y90]  –  RECOVERY of ESA-OGS Discovery
2016 YT₈ = XY84D80 (Dec. 30.66 UT) [see MPEC 2016-Y86]  – observation from collaborator Marco Micheli
2016 YC₈ = XY84722 (Dec. 28.92 UT) [see MPEC 2016-Y74] – observation from collaborator Marco Micheli
2016 YM₁ = P10yqp4 (Dec. 24.81 UT) [see MPEC 2016-Y46]
2016 XA₂₄ = XXBA9FE (Dec. 19.02 UT) [see MPEC 2016-Y10]  > Animation
2016 XP₂₃ = XXBA335 (Dec. 16.80 UT) [see MPEC 2016-Y4] > Animation
Minor Planet Ekrutt test frames on 2016-12-11 > Animation
Own Observatory Code for Calar Alto Schmidt on 2015-09-02 [see M.P.C. 95313]

submitted discovery candidates from 2016-12 until 2018-04
submitted discovery candidates since 2019-06