117P/Helin-Roman-Alu (Record n° 23285)
Orbital period : 8.25 years
NASA/JPL elements
IAU/MPC elements
On 2021 Apr 23 20h19 UT by Jean-Gabriel Bosch
(Copyright Jean-Gabriel Bosch)Nuclear magnitude (m2) 14.4 m2 standard deviation 0.1 Aperture radius used for m2 5.8 " r (dist/Sun) 3.659 AU d (dist/Earth) 2.685 AU Right ascension 13 15 26.74 h m s Declination -00 14 24.4 ° ' " 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 2021.04.24 17:46:49
AC2 JGBosch@free.fr
NET UCAC-4
0117P C2021 04 23.84654 13 15 26.74 -00 14 24.4 14.6 R A77
0117P C2021 04 23.85149 13 15 26.56 -00 14 24.0 14.4 R A77
0117P C2021 04 23.85647 13 15 26.29 -00 14 22.6 14.3 R A77
Instrument NEWTON 400 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 Sensor temperature -20 °C Binning 1x1 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 Apr 24 17h50m33s Observation modification date 2021 Apr 24 18h34m27s