Sif

04484, 1964 VN2, 1964VN2, 1987 DD, 1987DD, J64V02N, J87D00D

All data for this body: [vot]

MPC data
Name (number) Sif (4484)
a 2.63301
e 0.10234
i / sin(i) 29.8238 / 0.49734
q 2.36355
Q 2.90247
ω 359.2641
Node 84.9369
m 37.8177
n 0.2307
Epoch 2460800.5
nobs 3977
nopp 29
Years observed 1964-2025
rms 0.70
Best values
[raw, vot]

Value Standard error
Parent Brucato (4203)
 
ap 2.634
ep 0.095
sin(ip) 0.475
G 0.150
H 12.560
Mass
D 18.98 0.097
pV 0.076 0.0012
Value
Rotational Period
Period quality None
Spectral Class B
Spectral Class Score 12.218
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
4203 Brucato 807 Brucato 2.0200 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.6335 0.0946 0.4747 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
11.92 4.460 4.460 Masiero 2021PSJ.....2..162M NEATM
15.30 nan nan Ali-Lagoa 2016A&A...591A..14A NEATM
15.68 4.198 4.198 Masiero 2017AJ....154..168M NEATM
16.27 0.181 0.181 Masiero 2011ApJ...741...68M NEATM
17.99 0.230 0.230 Masiero 2012ApJ...759L...8M NEATM
18.11 3.620 3.620 Ali-Lagoa 2018A&A...612A..85A NEATM
19.36 0.480 0.480 Usui 2011PASJ...63.1117U NEATM
19.57 5.006 5.006 Masiero 2017AJ....154..168M NEATM
20.85 6.400 6.400 Masiero 2020PSJ.....1....5M NEATM
20.92 0.140 0.140 Nugent 2016AJ....152...63N NEATM
21.06 2.110 2.110 Ali-Lagoa 2018A&A...612A..85A NEATM
21.32 1.200 1.200 Tedesco 2002AJ....123.1056T STM
21.50 6.690 6.690 Masiero 2021PSJ.....2..162M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.036 0.0150 0.0260 Masiero 2021PSJ.....2..162M NEATM
0.036 0.0260 0.0260 Masiero 2020PSJ.....1....5M NEATM
0.043 0.0231 0.0231 Masiero 2017AJ....154..168M NEATM
0.046 0.0090 0.0090 Ali-Lagoa 2018A&A...612A..85A NEATM
0.056 0.0070 0.0070 Tedesco 2002AJ....123.1056T STM
0.061 0.0291 0.0291 Masiero 2017AJ....154..168M NEATM
0.062 0.0250 0.0250 Ali-Lagoa 2018A&A...612A..85A NEATM
0.066 0.0090 0.0090 Masiero 2012ApJ...759L...8M NEATM
0.078 0.0013 0.0013 Masiero 2011ApJ...741...68M NEATM
0.078 0.0370 0.0710 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
12.56 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
B Bus VIS Lazzaro 2004Icar..172..179L SPEC
B Tholen VIS Lazzaro 2004Icar..172..179L SPEC
B 0.283 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
B B 0.0867 0.0867 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
P 0.960000 Mahlke VIS Mahlke 2022A&A...665A..26M SPEC