117P/Helin-Roman-Alu (Record n° 23383)
Orbital period : 8.25 years
NASA/JPL elements
IAU/MPC elements
On 2021 May 19 21h39 UT by Jean-Gabriel Bosch
(Copyright Jean-Gabriel Bosch)Nuclear magnitude (m2) 14.7 m2 standard deviation 0.5 Aperture radius used for m2 5.8 " r (dist/Sun) 3.602 AU d (dist/Earth) 2.805 AU Right ascension 13 02 01.43 h m s Declination +00 01 43.0 ° ' " MPC report COD A77
CON J.-G. Bosch [JGBosch@free.fr]
OBS J.-G.Bosch
MEA J.-G. Bosch
TEL 0.4-m f/2.8 reflector + CCD
ACK MPCReport file updated 2021.05.20 11:17:59
AC2 JGBosch@free.fr
NET UCAC-4
0117P C2021 05 19.90207 13 02 01.43 +00 01 43.0 14.1 R A77
0117P C2021 05 19.90776 13 02 01.34 +00 01 41.6 15.1 R A77
0117P C2021 05 19.91343 13 02 01.21 +00 01 42.8 15.0 R A77
Instrument NEWTON Instrument type Newton Instrument aperture (0=naked eye) 400 mm Instrument focale length 1120 mm Instrument focale/diameter 2.8 Camera Atik 460ex Sensor CCD Mount Meade-MCMT-TDM Exposure details 15x60s Observatory MPC code A77 Location Obs. Dauban A77 Reference stars catalog UCAC-4
Used softwares ASTROMETRICA Resulting picture sampling (scale) 0.83 "/pix Observation submission date 2021 May 20 11h20m04s Observation modification date 2021 May 20 12h50m53s