Izu

04157, 1934 HB, 1934HB, 1975 VX1, 1975VX1, 1975 WJ1, 1975WJ1, 1979 WK7, 1979WK7, 1982 HW1, 1982HW1, 1988 XD2, 1988XD2, J34H00B, J75V01X, J75W01J, J79W07K, J82H01W, J88X02D

All data for this body: [vot]

MPC data
Name (number) Izu (4157)
a 2.67164
e 0.16341
i / sin(i) 12.8192 / 0.22188
q 2.23507
Q 3.10822
ω 206.8330
Node 66.8364
m 258.6807
n 0.2257
Epoch 2460800.5
nobs 5700
nopp 28
Years observed 1934-2025
rms 0.62
Best values
[raw, vot]

Value Standard error
Parent Adeona (145)
 
ap 2.674
ep 0.166
sin(ip) 0.201
G 0.150
H 12.530
Mass
D 21.19 0.541
pV 0.060 0.0037
Value
Rotational Period 17.873
Period quality 2
Spectral Class C
Spectral Class Score 12.285
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
145 Adeona 0 Adeona Novakovic 2019EPSC...13.1671N HCM
145 Adeona 505 Adeona 0.0500 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.6738 0.1663 0.2013 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
17.02 6.780 6.780 Nugent 2016AJ....152...63N NEATM
18.80 4.720 4.720 Masiero 2020PSJ.....1....5M NEATM
20.03 1.290 1.290 Usui 2011PASJ...63.1117U NEATM
20.59 4.120 4.120 Ali-Lagoa 2018A&A...612A..85A NEATM
21.01 1.100 1.100 Tedesco 2002AJ....123.1056T STM
21.14 2.241 2.241 Ryan&Woodward 2010AJ....140..933R IRAS-STM
21.62 0.835 0.835 Ryan&Woodward 2010AJ....140..933R IRAS-NEATM
22.14 5.780 5.780 Masiero 2020PSJ.....1....5M NEATM
22.85 6.390 6.390 Masiero 2020PSJ.....1....5M NEATM
22.94 5.570 5.570 Masiero 2020PSJ.....1....5M NEATM
23.39 2.760 2.760 Masiero 2012ApJ...759L...8M NEATM
24.37 7.830 7.830 Nugent 2016AJ....152...63N NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.028 0.0150 0.0150 Masiero 2020PSJ.....1....5M NEATM
0.029 0.0190 0.0190 Masiero 2020PSJ.....1....5M NEATM
0.029 0.0250 0.0250 Masiero 2020PSJ.....1....5M NEATM
0.030 0.0200 0.0200 Nugent 2016AJ....152...63N NEATM
0.040 0.0220 0.0220 Masiero 2020PSJ.....1....5M NEATM
0.051 0.0200 0.0200 Ali-Lagoa 2018A&A...612A..85A NEATM
0.060 0.0800 0.0800 Nugent 2016AJ....152...63N NEATM
0.066 0.0053 0.0053 Ryan&Woodward 2010AJ....140..933R IRAS-NEATM
0.070 0.0080 0.0080 Tedesco 2002AJ....123.1056T STM
0.071 0.0150 0.0150 Ryan&Woodward 2010AJ....140..933R IRAS-STM
0.107 0.0420 0.0420 Masiero 2012ApJ...759L...8M 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
12.53 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
17.8732 2 Synodic Pal 2020ApJS..247...26P Lightcurve
17.8827 2 Sidereal Durech 2023A&A...675A..24D Model
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
C DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
C 0.900000 Mahlke VIS Mahlke 2022A&A...665A..26M SPEC
C 0.99 Bus VIS Carvano 2010A&A...510A..43C PHOT
C C 0.6342 0.6342 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
Ch Bus VIS Bus 2002Icar..158..146B SPEC