201P/LONEOS (0201P)
TRY AGAIN 2027
Type: Periodic
Perihelion date: 26 May 2021
Perihelion distance (q): 1.2
Aphelion distance (Q) : 5.5
Period (years): 6.1
Eccentricity (e): 0.64
Inclination (i): 5.7
JPL orbit diagram
COBS lightcurve
An apparently asteroidal 18th mag (red) object discovered by LONEOS on 10
September 2001 and posted on the NEO Confirmation Page was found to be
cometary. Improved orbital elements were published on MPEC 2001-S05, including
prediscovery observations on 19 August by LINEAR by B. G. Marsden and these
indicate that this comet passed only 0.014 AU from Mars on 10 January 2002, as first
suggested by C.-I. Lagerkvist (Uppsala) and G. Hahn (German Aerospace Center,
Berlin).
Comet 2001 R1 (P/LONEOS) was recovered by Michael Jaeger from Stixendorf,
Austria on 31 August 2001 as a 17th magnitude object. It was confirmed by Giovanni
Sostero and team from the Skylive Observatory, Catania, Italy the following night.
Observations (VEMag = visual equivalent magnitude)
Date
10x10 mag
Error
VEmag
Coma '
12-Sep-14
15.84
0.02
14.8
0.3
19-Sep-14
15.89
0.02
14.8
0.4
29-Sep-14
16.03
0.01
14.2
0.5
10-Oct-14
15.77
0.01
14.8
0.2
17-Oct-14
15.80
0.02
14.6
0.4
27-Oct-14
16.06
0.04
14.9
0.4
07-Nov-14
16.26
0.05
15.2
0.2
17-Nov-14
16.35
0.02
15.3
0.3
25-Nov-14
16.39
0.02
15.4
0.3
03-Dec-14
16.23
0.04
15.5
0.2
12-Dec-14
16.14
0.05
14.9
0.4
01-Jan-15
16.26
0.07
15.3
0.2
17-Dec-15
16.70
0.03
15.5
0.2
16-Dec-15
18.83
0.51
18.3
0.2