117P/Helin-Roman-Alu (Record n° 23418)
Orbital period : 8.25 years
NASA/JPL elements
IAU/MPC elements
On 2021 May 31 21h08 UT by Marc Deldem
(Copyright Marc Deldem)Nuclear magnitude (m2) 16.4 m2 standard deviation 0.0 Aperture radius used for m2 6.75 " r (dist/Sun) 3.576 AU d (dist/Earth) 2.908 AU Right ascension 12 59 10.11 h m s Declination -00 15 51.7 ° ' " MPC report COD K22
CON M. Deldem [marc.deldem@free.fr]
OBS M. Deldem
MEA M. Deldem
TEL 0.20-m f/10 Schmidt-Cassegrain + CCD + f/8.1 focal reducer
ACK MPCReport file updated 2021.06.01 13:13:09
AC2 marc.deldem@free.fr
NET UCAC-4
0117P KC2021 05 31.88038 12 59 10.11 -00 15 51.7 16.4 V K22
0117P KC2021 05 31.90428 12 59 09.89 -00 15 54.4 16.4 V K22
0117P KC2021 05 31.93116 12 59 09.65 -00 15 58.1 16.4 V K22
Instrumental configuration Config1 Instrument C8 Instrument type Schmidt-Cassegrain Instrument aperture (0=naked eye) 200 mm Instrument focale length 1650 mm Instrument focale/diameter 8.1 Filter(s) None Camera SBIG ST8-XME Sensor CCD Sensor size 13.8x9.2 mm2 Sensor pixels number 1530x1020 Sensor temperature -15 °C Binning 1x1 Mount Avalon M-UNO Motorization Yes Autoguide Yes Exposure total time 4800 s Exposure details 20x4mn Air mass 1.54 Observatory MPC code K22 Location LAMANON Reference stars catalog UCAC-4
Used softwares ASTROMETRICA Resulting picture sampling (scale) 1.13 "/pix Observation submission date 2021 Jun 01 13h26m14s Observation modification date 2021 Jun 01 13h27m49s