1998 QR42

1998QR42, 12888, 1985 GC1, 1985GC1, J85G01C, J98Q42R

All data for this body: [vot]

MPC data
Name (number) 1998 QR42 (12888)
a 3.12949
e 0.13921
i / sin(i) 15.8451 / 0.27304
q 2.69384
Q 3.56515
ω 353.1804
Node 177.1009
m 103.0578
n 0.1780
Epoch 2460800.5
nobs 3822
nopp 26
Years observed 1955-2025
rms 0.64
Best values
[raw, vot]

Value Standard error
Parent
 
ap 3.132
ep 0.182
sin(ip) 0.261
G 0.150
H 12.820
Mass
D 17.14 0.231
pV 0.055 0.0064
Value
Rotational Period 3.790
Period quality 2
Spectral Class X
Spectral Class Score 12.425
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.1319 0.1820 0.2611 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
16.98 5.340 5.340 Masiero 2020PSJ.....1....5M NEATM
17.14 0.231 0.231 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.053 0.0390 0.0390 Masiero 2020PSJ.....1....5M NEATM
0.055 0.0065 0.0065 Masiero 2011ApJ...741...68M NEATM
G data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.15 MPC-2023-12-94 MPC-2023-12-94 Phot
H data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
12.82 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
3.799 2 Synodic Waszczak 2015AJ....150...75W Lightcurve
4.12778 2 Sidereal Durech 2023A&A...675A..24D Model
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
D D 0.6888 0.4230 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
D D 0.7461 0.4230 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
K D 0.2076 0.4230 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
X DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
X 0.23 Bus VIS Carvano 2010A&A...510A..43C PHOT
X 0.262 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
X D 0.3059 0.4230 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
X D 0.5426 0.4230 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
X D 0.5503 0.4230 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT