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C/2017 O1 (ASASSN)

Date of perihelion passage : 2017-10-14.7847
Perihelion distance : 1.498712 AU
Inclination to ecliptic : 39.8491 °
Eccentricity : 0.996553

NASA/JPL elements, ephemeris and orbit diagram
IAU/MPC elements and ephemeris


On 2017 Aug 20 00h36 UT by Patrick Ditz


(Copyright Patrick Ditz)

Nuclear magnitude (m2)14.9
m2 standard deviation0.1
Aperture radius used for m27.5 "
r (dist/Sun) 1.687 AU
d (dist/Earth) 1.222 AU
Right ascension03 23 32.53 h m s
Declination+02 03 31.9 ° ' "
MPC report
COD K97
CON P. Ditz [patrick.ditz@wanadoo.fr]
OBS P. Ditz
MEA P. Ditz
TEL 0.20-m f/7.4 reflector + CCD
ACK Report C/17O1 2017/08/20
AC2 patrick.ditz@wanadoo.fr
NET UCAC-4
    CK17O010  C2017 08 20.02494 03 23 32.53 +02 03 31.9          15.1 N      K97
    CK17O010  C2017 08 20.02950 03 23 32.95 +02 03 40.6          14.8 N      K97
    CK17O010  C2017 08 20.04771 03 23 34.64 +02 04 14.0          14.9 N      K97
Instrumental configurationConfig1
Instrumentperso
Instrument typeNewton
Instrument aperture (0=naked eye)200 mm
Instrument focale length1480 mm
Instrument focale/diameter7.4
Filter(s)L
CameraATIK 460 EX
SensorCCD
Sensor size12.5x10.0 mm2
Sensor pixels number2749x2199
Sensor temperature-15 °C
Binning2x2
MountVMA300 Valmeca
Exposure total time1020 s
Exposure details17x60s
Air mass3.54
Observatory MPC codeK97
Location67130 Freconrupt
Reference stars catalogUCAC-4
Photometry|Astrometry softwarePRISM
Resulting picture sampling (scale)1.26 "/pix
Image processingPRISM
Remarks or commentsMauvaises conditions d'observation: Hauteur de la comète 16° et mauvaise transparence.
Observation submission date2017 Aug 24 07h07m43s
Observation modification date2017 Aug 24 07h11m30s

(Record n° 18114)

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