1991 RW21

1991RW21, 1996 DQ7, 1996DQ7, 46566, J91R21W, J96D07Q

All data for this body: [vot]

MPC data
Name (number) 1991 RW21 (46566)
a 2.42400
e 0.25543
i / sin(i) 9.8576 / 0.17120
q 1.80484
Q 3.04316
ω 71.5217
Node 340.9131
m 289.2662
n 0.2612
Epoch 2460800.5
nobs 2013
nopp 19
Years observed 1991-2025
rms 0.69
Best values
[raw, vot]

Value Standard error
Parent Chaldaea (313)
 
ap 2.424
ep 0.234
sin(ip) 0.188
G 0.150
H 14.720
Mass
D 6.51 0.063
pV 0.069 0.0081
Value
Rotational Period 2.070
Period quality 1
Spectral Class Cgh
Spectral Class Score 18.000
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
313 Chaldaea 415 Chaldaea 0.6700 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.4244 0.2341 0.1878 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
5.25 1.350 1.350 Nugent 2016AJ....152...63N NEATM
5.28 1.530 1.530 Masiero 2020PSJ.....1....5M NEATM
5.40 1.410 1.410 Masiero 2021PSJ.....2..162M NEATM
6.51 0.063 0.063 Masiero 2011ApJ...741...68M NEATM
7.31 1.870 1.870 Masiero 2012ApJ...759L...8M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.051 0.0160 0.0160 Masiero 2012ApJ...759L...8M NEATM
0.073 0.0102 0.0102 Masiero 2011ApJ...741...68M NEATM
0.080 0.0300 0.0300 Nugent 2016AJ....152...63N NEATM
0.086 0.0780 0.0780 Masiero 2020PSJ.....1....5M NEATM
0.088 0.0330 0.0520 Masiero 2021PSJ.....2..162M 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
14.72 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
2.074 1 Synodic Waszczak 2015AJ....150...75W Lightcurve
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
Cgh Bus-DeMeo NIR Arredondo 2021Icar..35414028A SPEC
P C 0.600000 0.380000 Mahlke VISNIR Mahlke 2022A&A...665A..26M SPEC