Forum der Vereinigung der Sternfreunde

A. Fitzsimmons reports the discovery of a comet in four 30-second survey
images taken on Sep. 27 UT by ATLAS-HKO (T05), noting a condensed 9" coma.


G00 AZM Martinsberg, Oed. Observers M. Jaeger, E. Prosperi, S. Prosperi.
Measurer M. Jaeger. 0.35-m f/4.2 reflector + CCD.


Orbital elements:
C/2021 S1 (ATLAS)
Epoch 2021 Dec. 12.0 TT = JDT 2459560.5
T 2021 Dec. 26.64465 TT Rudenko
q 6.2152911 (2000.0) P Q
z -0.0037215 Peri. 141.91956 -0.06935164 -0.73303952
+/-0.0111329 Node 300.44457 +0.60774224 +0.50683272
e 1.0231300 Incl. 51.70751 +0.79110032 -0.45362281
From 72 observations 2021 Sept. 27-Oct. 2, mean residual 0".4.

C/2021 S1 (ATLAS)
Epoch 2021 July 5.0 TT = JDT 2459400.5
T 2021 Dec. 26.73921 TT Rudenko
q 6.2152316 (2000.0) P Q
z -0.0036265 Peri. 141.92915 -0.06944006 -0.73298403
+/-0.0111329 Node 300.44098 +0.60781257 +0.50679671
e 1.0225396 Incl. 51.71031 +0.79103853 -0.45375269
From 72 observations 2021 Sept. 27-Oct. 2, mean residual 0".4.


MPEC 2021-T21

_________________
Michael Möller (MMI)

auch CBET 5047

_________________
Michael Möller (MMI)