Semmelweis

04170, 1937 JC, 1937JC, 1978 EJ4, 1978EJ4, 1980 PT, 1980PT, 1986 TQ2, 1986TQ2, J37J00C, J78E04J, J80P00T, J86T02Q

All data for this body: [vot]

MPC data
Name (number) Semmelweis (4170)
a 3.02078
e 0.08983
i / sin(i) 10.3474 / 0.17962
q 2.74942
Q 3.29214
ω 120.6454
Node 171.3968
m 205.4478
n 0.1877
Epoch 2460800.5
nobs 6240
nopp 32
Years observed 1937-2025
rms 0.63
Best values
[raw, vot]

Value Standard error
Parent Eos (221)
 
ap 3.022
ep 0.079
sin(ip) 0.175
G 0.150
H 11.720
Mass
D 16.90 0.123
pV 0.166 0.0086
Value
Rotational Period 5.000
Period quality 3
Spectral Class L
Spectral Class Score 11.414
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
221 Eos 0 Eos Novakovic 2019EPSC...13.1671N HCM
221 Eos 606 Eos -0.1200 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.0215 0.0789 0.1748 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
14.90 2.980 2.980 Ali-Lagoa 2018A&A...612A..85A NEATM
16.82 0.150 0.150 Masiero 2014ApJ...791..121M NEATM
17.04 0.218 0.218 Masiero 2011ApJ...741...68M NEATM
17.82 1.110 1.110 Usui 2011PASJ...63.1117U NEATM
20.58 4.120 4.120 Ali-Lagoa 2018A&A...612A..85A NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.099 0.0400 0.0400 Ali-Lagoa 2018A&A...612A..85A NEATM
0.168 0.0099 0.0099 Masiero 2011ApJ...741...68M NEATM
0.170 0.0200 0.0200 Masiero 2014ApJ...791..121M NEATM
0.189 0.0760 0.0760 Ali-Lagoa 2018A&A...612A..85A 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
11.72 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
5.3 3 Synodic Benishek 2021MPBu...48..280B Lightcurve
5.302 2 Synodic Waszczak 2015AJ....150...75W Lightcurve
5.305 2 Synodic Waszczak 2015AJ....150...75W Lightcurve
5.30526 2 Sidereal Durech 2020A&A...643A..59D Model
5.3054 2 Synodic Pal 2020ApJS..247...26P Lightcurve
5.31 3- Synodic Aznar 2016MPBu...43..350M Lightcurve
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
K L 0.2475 0.2240 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
K L 0.5311 0.2240 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
L L 0.4662 0.2240 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
L L 0.5742 0.2240 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
L L 0.8619 0.2240 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
V L 0.0295 0.2240 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT