Alstede

00955, 1921 PD, 1921PD, 1946 OF, 1946OF, 1955 TY, 1955TY, 1966 DF, 1966DF, J21P00D, J46O00F, J55T00Y, J66D00F

All data for this body: [vot]

MPC data
Name (number) Alstede (955)
a 2.59468
e 0.28881
i / sin(i) 10.6879 / 0.18546
q 1.84531
Q 3.34406
ω 282.3552
Node 351.4228
m 328.6265
n 0.2358
Epoch 2460800.5
nobs 8499
nopp 43
Years observed 1921-2025
rms 0.50
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.593
ep 0.275
sin(ip) 0.207
G 0.150
H 10.860
Mass
D 17.45 0.567
pV 0.183 0.0139
Value
Rotational Period 5.100
Period quality 3
Spectral Class S
Spectral Class Score 6.800
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.5932 0.2754 0.2074 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
13.58 1.235 1.235 Ryan&Woodward 2010AJ....140..933R IRAS-STM
17.24 1.530 1.530 Usui 2011PASJ...63.1117U NEATM
17.33 1.000 1.000 Tedesco 2002AJ....123.1056T STM
18.23 3.650 3.650 Ali-Lagoa 2018A&A...612A..85A NEATM
20.24 1.066 1.066 Ryan&Woodward 2010AJ....140..933R IRAS-NEATM
20.53 3.600 3.600 Masiero 2012ApJ...759L...8M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.157 0.0168 0.0168 Ryan&Woodward 2010AJ....140..933R IRAS-NEATM
0.213 0.0280 0.0280 Tedesco 2002AJ....123.1056T STM
0.239 0.2200 0.2200 Masiero 2012ApJ...759L...8M NEATM
0.303 0.1210 0.1210 Ali-Lagoa 2018A&A...612A..85A NEATM
0.355 0.0639 0.0639 Ryan&Woodward 2010AJ....140..933R IRAS-STM
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
10.86 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
4.51 2 Synodic Behrend LCDB Lightcurve
4.51 1 Synodic Behrend LCDB Lightcurve
5.187 2 Synodic Waszczak 2015AJ....150...75W Lightcurve
5.18734 2 Sidereal Durech 2018Icar..304..101D Model
5.18734 2 Sidereal Martikainen 2021A&A...649A..98M Model
5.18735 2 Sidereal Durech 2016A&A...587A..48D Model
5.19 3 Synodic LeCrone 2004MPBu...31...78L 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 Lazzaro 2004Icar..172..179L SPEC
S 0.325 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
S 0.970000 Mahlke VIS Mahlke 2022A&A...665A..26M SPEC
SI Bus VIS Lazzaro 2004Icar..172..179L SPEC