Urda

00167, 1876 QA, 1876QA, 1899 KC, 1899KC, 1905 QA, 1905QA, 1906 WA, 1906WA, I76Q00A, I99K00C, J05Q00A, J06W00A

All data for this body: [vot]

MPC data
Name (number) Urda (167)
a 2.85394
e 0.03713
i / sin(i) 2.2173 / 0.03869
q 2.74797
Q 2.95991
ω 127.3164
Node 166.0962
m 337.6997
n 0.2044
Epoch 2460800.5
nobs 9655
nopp 58
Years observed 1884-2025
rms 0.51
Best values
[raw, vot]

Value Standard error
Parent Koronis (158)
 
ap 2.853
ep 0.043
sin(ip) 0.037
G 0.150
H 9.380
Mass
D 41.03 0.169
pV 0.221 0.0083
Value
Rotational Period 13.000
Period quality 3
Spectral Class S
Spectral Class Score 22.898
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
158 Koronis 0 Koronis Novakovic 2019EPSC...13.1671N HCM
158 Koronis 605 Koronis -1.5300 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.8535 0.0429 0.0372 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
36.92 2.512 2.512 Ryan&Woodward 2010AJ....140..933R MSX-NEATM
37.44 7.490 7.490 Ali-Lagoa 2018A&A...612A..85A NEATM
37.48 0.540 0.540 Masiero 2014ApJ...791..121M NEATM
37.84 1.478 1.478 Ryan&Woodward 2010AJ....140..933R MSX-STM
38.36 0.460 0.460 Usui 2011PASJ...63.1117U NEATM
38.74 3.870 3.870 Ali-Lagoa 2018A&A...612A..85A NEATM
39.93 0.260 0.260 Masiero 2014ApJ...791..121M NEATM
39.94 1.900 1.900 Tedesco 2002AJ....123.1056T STM
40.80 0.800 0.800 Hanus 2018Icar..309..297H RADIOMETRY_TPM
41.50 0.800 0.800 Hanus 2018Icar..309..297H RADIOMETRY_TPM
41.60 4.160 4.160 Ali-Lagoa 2018A&A...612A..85A NEATM
41.82 1.999 1.999 Ryan&Woodward 2010AJ....140..933R IRAS-STM
44.00 15.000 15.000 Durech 2011Icar..214..652D OCCULT
45.37 0.596 0.596 Masiero 2011ApJ...741...68M NEATM
45.85 6.231 6.231 Ryan&Woodward 2010AJ....140..933R IRAS-NEATM
47.20 0.449 0.449 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.160 0.0423 0.0423 Masiero 2011ApJ...741...68M NEATM
0.173 0.0259 0.0259 Masiero 2011ApJ...741...68M NEATM
0.178 0.0472 0.0472 Ryan&Woodward 2010AJ....140..933R IRAS-NEATM
0.204 0.0197 0.0197 Ryan&Woodward 2010AJ....140..933R IRAS-STM
0.220 0.0200 0.0200 Masiero 2014ApJ...791..121M NEATM
0.223 0.0230 0.0230 Tedesco 2002AJ....123.1056T STM
0.240 0.0480 0.0480 Ali-Lagoa 2018A&A...612A..85A NEATM
0.249 0.0194 0.0194 Ryan&Woodward 2010AJ....140..933R MSX-STM
0.250 0.0400 0.0400 Masiero 2014ApJ...791..121M NEATM
0.263 0.0311 0.0311 Ryan&Woodward 2010AJ....140..933R MSX-NEATM
0.277 0.0550 0.0550 Ali-Lagoa 2018A&A...612A..85A NEATM
0.297 0.1190 0.1190 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
9.38 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
13.054 3 Synodic Warner 2008MPBu...35...67W Lightcurve
13.06 2 Synodic Erasmus 2020ApJS..247...13E Lightcurve
13.06133 2 Sidereal Durech 2011Icar..214..652D Model
13.06133 2 Sidereal Warner 2008MPBu...35..167W Model
13.06134 2 Sidereal Martikainen 2021A&A...649A..98M Model
13.066 3 Synodic Behrend LCDB Lightcurve
13.07 3 Synodic Slivan 1996Icar..124..452S Lightcurve
16.0 2 Synodic Tedesco LCDB Lightcurve
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
S Tholen VIS Binzel 1993Icar..106..608B PHOT
S 1.000000 Mahlke VISNIR Mahlke 2022A&A...665A..26M SPEC
S Q Tholen VIS Clark 1995Icar..113..387C PHOT
S Q 0.850000 0.150000 Mahlke VISNIR Mahlke 2022A&A...665A..26M SPEC
S S 0.9913 0.9913 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
Sk Bus VIS Bus 2002Icar..158..146B SPEC
Sw Bus-DeMeo VISNIR Gietzen 2012M&PS...47.1789G SPEC