Hirst

03172, 1954 NW, 1954NW, 1977 TC3, 1977TC3, 1981 WW, 1981WW, J54N00W, J77T03C, J81W00W

All data for this body: [vot]

MPC data
Name (number) Hirst (3172)
a 2.42611
e 0.22176
i / sin(i) 3.6515 / 0.06369
q 1.88810
Q 2.96412
ω 271.2140
Node 83.3153
m 219.8501
n 0.2608
Epoch 2460800.5
nobs 4023
nopp 31
Years observed 1954-2025
rms 0.68
Best values
[raw, vot]

Value Standard error
Parent Nysa (44)
 
ap 2.427
ep 0.183
sin(ip) 0.048
G 0.150
H 13.260
Mass
D 5.57 0.100
pV 0.386 0.0557
Value
Rotational Period
Period quality None
Spectral Class S
Spectral Class Score 10.525
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
44 Nysa 405 Nysa-Polana 0.1000 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.4266 0.1835 0.0478 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
4.43 0.690 0.690 Nugent 2016AJ....152...63N NEATM
5.51 0.241 0.241 Masiero 2011ApJ...741...68M NEATM
5.62 0.112 0.112 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.340 0.1600 0.1600 Nugent 2016AJ....152...63N NEATM
0.387 0.0730 0.0730 Masiero 2011ApJ...741...68M NEATM
0.403 0.1023 0.1023 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
13.26 MPC-2023-12-04 MPC-2023-12-04 Phot
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
A 0.367 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
S Tholen VIS Cellino 2001Icar..152..225C SPEC
S S None None Movis NIR Popescu 2018A&A...617A..12P PHOT
S S 0.7541 0.7541 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT