Asteroids

3757 Anagolay help

Last update: 2026-03-17 23:26 UTC

Orbital Properties

Epoch

61200.0

MJD

Orbit type

Apollo

Perihelion (q)

1.017

Aphelion (Q)

2.653

Eccentricity (e)

0.446

Inclination (i)

3.9

deg

Orbit period (P)

907.7

Earth MOID

0.03673

U parameter

0.0

Next Earth close approach

Date

2070-01-12

Nominal distance (from Earth center)

0.08667

12966045

Maximum Brightness

15.8

mag

Risk

Object is not in risk list

Physical Properties

Absolute Magnitude (H)

mag

Diameter

390

Taxonomic type

Rotation period (T)

9.005

Discovery Information

Discovery Date

1982-12-14

Observatory

Palomar Mountain

ORBIT VISUALISATION TOOLS

External links

Proper elements

Epoch

Near present day

Near middle of observation arc

Orbit properties

Epoch
Semimajor Axis
Eccentricity (e)
Inclination (i)
Long. of Ascending Node (Ω)
Arg. of Perihelion (ω)
Mean Anomaly (M)
Perihelion distance
Aphelion distance
Asc. Node-Earth Sep.
Desc. Node-Earth Sep.
MOID
Orbit Period
U parameter

Value

1-sigma variation

Unit

Epoch

Value

61200.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

1.834728

1-sigma variation

2.121E-9

Unit

Eccentricity (e)

Value

0.445766

1-sigma variation

4.043E-8

Unit

Inclination (i)

Value

3.8661

1-sigma variation

5.334E-6

Unit

Long. of Ascending Node (Ω)

Value

74.9269

1-sigma variation

0.0001

Unit

Arg. of Perihelion (ω)

Value

17.2496

1-sigma variation

0.0001

Unit

Mean Anomaly (M)

Value

171.67323

1-sigma variation

0.00001

Unit

Perihelion distance

Value

1.016868

1-sigma variation

Unit

Aphelion distance

Value

2.652589

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.045653

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

1.544841

1-sigma variation

Unit

MOID

Value

0.036726

1-sigma variation

Unit

Orbit Period

Value

907.7288

1-sigma variation

Unit

U parameter

Value

0.0

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	4.49893E-18	-2.13053E-17	1.26506E-15	-1.86431E-14	3.45628E-14	-2.47675E-14
e	-2.13053E-17	1.63452E-15	-1.83246E-14	4.44768E-13	-4.83508E-13	-4.65488E-14
i	1.26506E-15	-1.83246E-14	2.84495E-11	-4.50950E-11	4.91069E-11	-5.43204E-12
Ω	-1.86431E-14	4.44768E-13	-4.50950E-11	3.49183E-9	-3.60339E-9	1.46356E-10
ω	3.45628E-14	-4.83508E-13	4.91069E-11	-3.60339E-9	3.79407E-9	-2.43250E-10
M	-2.47675E-14	-4.65488E-14	-5.43204E-12	1.46356E-10	-2.43250E-10	1.60202E-10

Date of computation: 2026-03-17 23:26 UTC

Note: The ASCII file is in a format suitable for Orbfit input.

Download ASCII file:

Physical properties

Rotation Period
Quality
Amplitude
Rotation Direction
Spinvector L
Spinvector B

Rotational properties

Value

Unit

Source

Rotation Period

Value

9.005

Unit

Source

[2]

Quality

Value

Unit

Source

[2]

Amplitude

Value

0.2

Unit

mag

Source

[2]

Rotation Direction

Value

Unit

Source

[-]

Spinvector L

Value

Unit

Source

[-]

Spinvector B

Value

Unit

Source

[-]

Taxonomy
Taxonomy (all)

Taxonomy

Value

Unit

Source

Taxonomy

Value

Unit

Source

[1]

Taxonomy (all)

Value

Unit

Source

[1]

Absolute Magnitude (H)
Slope Parameter (G)

H / G

Value

Unit

Source

Absolute Magnitude (H)

Value

19.041

18.95

Unit

mag

Source

[3]

[4]

Slope Parameter (G)

Value

0.15**

Unit

Source

[3]

Albedo
Diameter

Size and albedo

Value

Unit

Source

Albedo

Value

0.34

Unit

Source

[5]

Diameter

Value

390

Unit

Source

[5]

Color Index Information

Color Index Information

Value

Unit

Source

Color Index Information

Value

0.51

0.85

Unit

U-B

B-V

Source

[6]

Sightings

Sightings

Value

Unit

Source

Sightings

Value

Radar R

Unit

Source

[7]

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Sources

No.	Name	Additional
[1]	EARN	1.) Tholen, D.J. (1989) in "Asteroids II" (Eds. R.P.Binzel et al.), Univ.Ariz.Press, Tucson, USA, pp. 1139-1150.
[2]	EARN	1.) Harris, A.W. & J.W. Young (1985) B.A.A.S. 17, 726. (Photometric Results for Earth Approaching Asteroids.) (1627,1036,1862,1982RA,1982XB,1983RD,1984KD) 2.) Binzel, R.P. (1987) Icarus 72, 135-208. (A photoelectric survey of 130 asteroids) 3.) Harris, A.W. (DLR) (1998) Icarus 131, 291-301. (A Thermal Model for Near-Earth Asteroids) 4.) Harris(JPL), A.W. et al. (1999) Icarus 142,173-201. (Asteroid lightcurve observations from 1981-1983)
[3]	ESA Aegis	ESA orbit determination and impact monitoring system
[4]	EARN	1.) Binzel, R.P. (1987) Icarus 72, 135-208. (A photoelectric survey of 130 asteroids)
[5]	EARN	1.) Harris, A.W. (DLR) & J.S.V Lagerros (2002) in "Asteroids III" (Eds. W.F.Bottke et al.), Univ.Ariz.Press, Tucson, USA, pp. 205-218. (Asteroids in the thermal infrared) 2.) Veeder, G.J. et al. (1989) Astron. J. 97, 1211-1219. (Radiometry of near-earth asteroids) 3.) Helin, E.F. et al. (1983) LPSC 14, 297-298. (a new earth-approaching asteroid, 1982XB)
[6]	EARN	1.) Tholen, D.J. (1983) I.A.U. Circ. HREF="http://www.cbat.eps.harvard.edu/iauc/03700/03761.html"> 3761. (1982 XB - U-B, B-V, LC ampl)
[7]	EARN	1.) href="http://echo.jpl.nasa.gov/asteroids/index.html">JPL's NEO Radar Detection Program Webpage 2.) Ostro, S.J. et al. (1991) Astron. J. 102, 1490-1502. (Asteroid radar astrometry) 3.) Shepard, M.K. et al. (2004) Icarus 172, 170-178. (Radar detection of near-Earth asteroids 1915 Quetzalcoatl, 3199 Nefertiti, 3757 (1982 XB), and 4034 (1986 PA))

Observational Information

Arc Length
Unobserved
Normalized RMS of residuals

Arc Information

Value

Unit

Source

Arc Length

Value

15208

Unit

Source

[1]

Unobserved

Value

655

Unit

Source

[1]

Normalized RMS of residuals

Value

0.748645

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

1982-12-14.18611

Unit

Source

[2]

Last Observation

Value

2024-08-03.498792

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

223 (9)

Unit

Source

[1]

Radar Summary

First Observation
Last Observation
Delay (Discarded)
Doppler (Discarded)
Total Optical Observations (Discarded)

Radar

Value

Unit

Source

First Observation

Value

1987-12-05

Unit

Source

[3]

Last Observation

Value

1987-12-06

Unit

Source

[3]

Delay (Discarded)

Value

0 (0)

Unit

Source

[-]

Doppler (Discarded)

Value

2 (0)

Unit

Source

[1]

Total Radar Observations (Discarded)

Value

2 (0)

Unit

Source

[1]

Note: The ASCII file is in a format suitable for Orbfit input.

Sources

No.	Name	Additional
[1]	ESA Aegis	ESA orbit determination and impact monitoring system
[2]	MPC	Minor Planet Center: https://www.minorplanetcenter.net
[3]	JPL Radar Observations	Jet Propulsion Laboratory: https://ssd.jpl.nasa.gov/dat/radar_data_ast.txt

Computation parameters

As seen from:

Initial Date: *

Final Date: *

Output option:

One line per time step

Time step:*

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Note: Ephemerides requests are limited to a maximum of 1000 points and a final date not exceeding 2040/12/31 00:00.

Close Approaches for 3757 Anagolay from 1950 to 2126

Body	Date in UTC	Time uncert. in min	Nominal distance in au	Min. possible distance in au	Distance uncert. in au
EARTH	1978-01-17 23:11	< 1 min	0.1213993	0.1213984	0.0000003
EARTH	1982-12-22 02:15	< 1 min	0.0377274	0.0377271	0.0000001
EARTH	1987-12-01 10:41	< 1 min	0.0771093	0.0771087	0.0000002
EARTH	2070-01-12 06:07	< 1 min	0.0866727	0.0866709	0.0000006
EARTH	2074-12-18 07:40	< 1 min	0.0379216	0.0379214	0.0000001
EARTH	2079-11-27 05:08	< 1 min	0.1117703	0.1117673	0.0000010

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
356.52558130	345.46650038	0.03663677	MINIMUM
179.96979500	170.74378101	1.63487919	SADDLE
359.74718344	170.57855741	2.03442626	SADDLE
179.84057032	350.66550050	3.63611112	MAXIMUM

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MOID Plots

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