1998 BR1

1998BR1, 18595, 1999 GY4, 1999GY4, J98B01R, J99G04Y

All data for this body: [vot]

MPC data
Name (number) 1998 BR1 (18595)
a 2.36841
e 0.25537
i / sin(i) 5.8319 / 0.10161
q 1.76358
Q 2.97323
ω 312.2523
Node 43.8054
m 275.1496
n 0.2704
Epoch 2460800.5
nobs 4543
nopp 22
Years observed 1989-2025
rms 0.64
Best values
[raw, vot]

Value Standard error
Parent Erigone (163)
 
ap 2.368
ep 0.214
sin(ip) 0.087
G 0.150
H 13.870
Mass
D 11.75 0.055
pV 0.042 0.0022
Value
Rotational Period 6.020
Period quality 2
Spectral Class C
Spectral Class Score 0.690
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
163 Erigone 0 Erigone Novakovic 2019EPSC...13.1671N HCM
163 Erigone 406 Erigone 0.0700 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.3678 0.2138 0.0875 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
10.82 2.150 2.150 Masiero 2021PSJ.....2..162M NEATM
11.51 0.070 0.070 Masiero 2011ApJ...741...68M NEATM
11.56 4.610 4.610 Masiero 2021PSJ.....2..162M NEATM
11.57 2.733 2.733 Masiero 2017AJ....154..168M NEATM
12.15 0.088 0.088 Masiero 2011ApJ...741...68M NEATM
12.41 1.000 1.000 Tedesco 2002AJ....123.1056T STM
8.08 1.690 1.690 Nugent 2016AJ....152...63N NEATM
9.43 1.910 1.910 Masiero 2020PSJ.....1....5M NEATM
9.51 2.530 2.530 Masiero 2020PSJ.....1....5M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.035 0.0070 0.0070 Tedesco 2002AJ....123.1056T STM
0.039 0.0165 0.0165 Masiero 2017AJ....154..168M NEATM
0.040 0.0200 0.0390 Masiero 2021PSJ.....2..162M NEATM
0.042 0.0024 0.0024 Masiero 2011ApJ...741...68M NEATM
0.046 0.0260 0.0610 Masiero 2021PSJ.....2..162M NEATM
0.051 0.0230 0.0230 Masiero 2020PSJ.....1....5M NEATM
0.053 0.0125 0.0125 Masiero 2011ApJ...741...68M NEATM
0.059 0.0510 0.0510 Masiero 2020PSJ.....1....5M NEATM
0.070 0.0300 0.0300 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
13.87 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
6.0203 2 Sidereal Durech 2020A&A...643A..59D Model
6.02033 2 Sidereal Durech 2018A&A...617A..57D Model
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
C 0.115 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT