O Briain

OBriain, 04901, 1950 QS, 1950QS, 1974 SF2, 1974SF2, 1977 KV1, 1977KV1, 1981 UW13, 1981UW13, 1988 VJ, 1988VJ, J50Q00S, J74S02F, J77K01V, J81U13W, J88V00J

All data for this body: [vot]

MPC data
Name (number) O Briain (4901)
a 2.27361
e 0.19087
i / sin(i) 4.6444 / 0.08097
q 1.83965
Q 2.70756
ω 94.2989
Node 227.1060
m 118.7657
n 0.2875
Epoch 2460200.5
nobs 3535
nopp 26
Years observed 1950-2023
rms 0.58
Best values
[raw, vot]

Value Standard error
Parent Flora (8)
 
ap 2.274
ep 0.142
sin(ip) 0.096
Value Standard error
G 0.150
H 13.770
Mass
D 4.85 0.244
pV 0.287 0.0244
Rotational Period 2.650
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
8 Flora 402 Flora 0.7400 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
298 Baptistina 403 Baptistina 0.8500 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.2744 0.1422 0.0963 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Oct-2022
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
3.62 0.610 0.610 Nugent 2016AJ....152...63N NEATM
4.31 0.670 0.670 Nugent 2016AJ....152...63N NEATM
5.22 0.290 0.290 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.282 0.0254 0.0254 Masiero 2011ApJ...741...68M NEATM
0.300 0.1100 0.1100 Nugent 2016AJ....152...63N NEATM
0.410 0.1400 0.1400 Nugent 2016AJ....152...63N 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
13.77 MPC-2023-12-04 MPC-2023-12-04 Phot
Period data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
2.65 Benishek 2022CBET.5189....1B Lightcurve
2.65 Dose 2023MPBu...50...65D Lightcurve
2.65 Farfan LCDB Lightcurve