Ivar

01627, 1929 SH, 1929SH, 1957 NA, 1957NA, 1957 XA, 1957XA, J29S00H, J57N00A, J57X00A

All data for this body: [vot]

MPC data
Name (number) Ivar (1627)
a 1.86352
e 0.39643
i / sin(i) 8.4505 / 0.14696
q 1.12477
Q 2.60228
ω 167.8142
Node 133.1151
m 1.4761
n 0.3874
Epoch 2460200.5
nobs 12887
nopp 33
Years observed 1929-2023
rms 0.43
Best values
[raw, vot]

Value Standard error
Parent
 
ap
ep
sin(ip)
Value Standard error
G 0.150
H 12.840
Mass
D 8.12 0.061
pV 0.138 0.0204
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
5.96 1.980 1.980 Masiero 2020PSJ.....1....5M NEATM
7.40 0.200 0.100 Hanus 2015Icar..256..101H RADIOMETRY_TPM
7.40 0.200 0.200 Hanus 2015Icar..256..101H RADIOMETRY_TPM
7.60 0.760 0.760 Crowell 2017Icar..291..254C RADAR
8.00 0.900 0.300 Hanus 2015Icar..256..101H RADIOMETRY_TPM
8.37 0.075 0.075 Mainzer 2011ApJ...743..156M NEATM
8.48 0.292 0.292 Mainzer 2014ApJ...792...30M NEATM
8.99 3.310 3.310 Masiero 2020PSJ.....1....5M NEATM
9.00 0.817 0.817 Masiero 2011ApJ...741...68M NEATM
9.01 2.360 2.360 Masiero 2020PSJ.....1....5M NEATM
9.12 nan nan Delbo 2003Icar..166..116D RADIOMETRY_NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.023 0.5000 0.5000 Mainzer 2014ApJ...792...30M NEATM
0.127 0.0750 0.0750 Masiero 2020PSJ.....1....5M NEATM
0.129 0.1120 0.1120 Masiero 2020PSJ.....1....5M NEATM
0.134 0.0250 0.0250 Mainzer 2011ApJ...743..156M NEATM
0.153 0.0456 0.0456 Masiero 2011ApJ...741...68M NEATM
0.167 0.1300 0.1300 Masiero 2020PSJ.....1....5M 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
12.84 MPC-2023-12-04 MPC-2023-12-04 Phot