Asteroids

2023DO help

Last update: 2025-04-02 01:31 UTC

Orbital Properties

Epoch

60800.0

MJD

Orbit type

Aten

Perihelion (q)

0.519

Aphelion (Q)

1.028

Eccentricity (e)

0.329

Inclination (i)

2.9

deg

Orbit period (P)

248.4

Earth MOID

0.00138

U parameter

7.1

Next Earth close approach

Date

2038-03-27

Nominal distance (from Earth center)

0.02588

3872132

Maximum Brightness

22.9

mag

Risk

Object is in risk list

Object is not in priority list

Physical Properties

Absolute Magnitude (H)

25.5

mag

Diameter

21 - 50*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2023-02-23

Observatory

MARGO, Nauchnyi

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

60800.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

0.773425

1-sigma variation

0.000070

Unit

Eccentricity (e)

Value

0.328942

1-sigma variation

0.000148

Unit

Inclination (i)

Value

2.8618

1-sigma variation

0.0017

Unit

Long. of Ascending Node (Ω)

Value

4.7000

1-sigma variation

0.0044

Unit

Arg. of Perihelion (ω)

Value

337.9450

1-sigma variation

0.0027

Unit

Mean Anomaly (M)

Value

244.56117

1-sigma variation

0.16034

Unit

Perihelion distance

Value

0.519012

1-sigma variation

Unit

Aphelion distance

Value

1.027837

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

-0.473251

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

-0.005361

1-sigma variation

Unit

MOID

Value

0.001378

1-sigma variation

Unit

Orbit Period

Value

248.4422

1-sigma variation

Unit

U parameter

Value

7.1

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	4.92107E-9	-1.03594E-8	-1.18454E-7	3.06098E-7	-1.86901E-7	-1.12478E-5
e	-1.03594E-8	2.18077E-8	2.49360E-7	-6.44369E-7	3.93447E-7	2.36778E-5
i	-1.18454E-7	2.49360E-7	2.85138E-6	-7.36875E-6	4.49951E-6	2.70743E-4
Ω	3.06098E-7	-6.44369E-7	-7.36875E-6	1.90476E-5	-1.16331E-5	-6.99627E-4
ω	-1.86901E-7	3.93447E-7	4.49951E-6	-1.16331E-5	7.10626E-6	4.27185E-4
M	-1.12478E-5	2.36778E-5	2.70743E-4	-6.99627E-4	4.27185E-4	2.57082E-2

Date of computation: 2025-02-19 13:28 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

Unit

Source

[-]

Quality

Value

Unit

Source

[-]

Amplitude

Value

Unit

mag

Source

[-]

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

[-]

Taxonomy (all)

Value

Unit

Source

[-]

Absolute Magnitude (H)
Slope Parameter (G)

H / G

Value

Unit

Source

Absolute Magnitude (H)

Value

25.51

Unit

mag

Source

[1]

Slope Parameter (G)

Value

0.15**

Unit

mag

Source

[1]

Albedo
Diameter

Size and albedo

Value

Unit

Source

Albedo

Value

0.05 - 0.25

Unit

Source

[2]

Diameter

Value

21 - 50*

Unit

Source

[2]

Color Index Information

Color Index Information

Value

Unit

Source

Color Index Information

Value

Unit

mag

Source

[-]

Sightings

Sightings

Value

Unit

Source

Sightings

Value

Unit

Source

[-]

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Sources

No.	Name	Additional
No.[1]	NameESA Aegis	AdditionalESA orbit determination and impact monitoring system
No.[2]	NameEstimation	AdditionalEstimated from absolute magnitude

Observational Information

Arc Length
Unobserved
Normalized RMS of residuals

Arc Information

Value

Unit

Source

Arc Length

Value

Unit

Source

[1]

Unobserved

Value

738

Unit

Source

[1]

Normalized RMS of residuals

Value

0.8192

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2023-02-13.47701

Unit

Source

[2]

Last Observation

Value

2023-03-26.328411

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

52 (0)

Unit

Source

[1]

Radar Summary

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

Radar

Value

Unit

Source

First Observation

Value

Unit

Source

[-]

Last Observation

Value

Unit

Source

[-]

Delay (Discarded)

Value

0 (0)

Unit

Source

[-]

Doppler (Discarded)

Value

0 (0)

Unit

Source

[-]

Total Radar Observations (Discarded)

Value

0 (0)

Unit

Source

[-]

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

Computation parameters

As seen from:

Initial Date: *

Final Date: *

Output option:

One line per time step

Time step:*

* - these fields are required

Close Approaches for 2023DO from 1950 to 2125

Body	Date in UTC	Time uncert. in min	Nominal distance in au	Min. possible distance in au	Distance uncert. in au
EARTH	1951-03-30 07:19	567.8	0.1459903	0.1212840	0.0082465
EARTH	1953-03-23 03:46	819.2	0.0066862	0.0042135	0.0030448
EARTH	1955-02-04 22:59	1413.6	0.0491319	0.0397088	0.0038758
EARTH	1970-03-28 15:24	> 1 d	0.0370667	0.0026730	0.0639987
EARTH	1972-02-14 01:39	> 1 w	0.0363274	0.0351740	0.0077530
VENUS	1973-12-29 05:53	> 1 d	0.0313557	0.0305197	0.0105075
EARTH	1974-02-03 14:12	1013.9	0.1757795	0.0753669	0.0347841
EARTH	1987-03-29 20:33	14.3	0.1703516	0.1694238	0.0003093
EARTH	1989-03-19 19:57	> 1 d	0.0180788	0.0075516	0.0035262
EARTH	1991-02-03 08:18	324.6	0.0715350	0.0552981	0.0057150
VENUS	1992-02-09 13:52	565.2	0.0465084	0.0394724	0.0049822
EARTH	2004-03-29 04:22	223.9	0.1640358	0.1343777	0.0098863
VENUS	2005-01-11 22:19	812.8	0.0414629	0.0393047	0.0040125
EARTH	2006-03-14 08:21	> 1 d	0.0310688	0.0165103	0.0048769
EARTH	2008-02-02 21:08	96.1	0.1014614	0.0737257	0.0095277
VENUS	2012-09-29 12:28	436.9	0.0444708	0.0318329	0.0064781
EARTH	2021-03-29 18:58	35.7	0.0827031	0.0777405	0.0016542
EARTH	2023-02-18 23:13	< 1 min	0.0398667	0.0398087	0.0000193
EARTH	2025-02-03 01:31	41.0	0.1795502	0.1745736	0.0016601
VENUS	2037-01-06 16:39	697.6	0.0462192	0.0400649	0.0056639
EARTH	2038-03-27 15:56	1074.2	0.0258836	0.0006386	0.0084443
EARTH	2040-02-10 16:34	924.0	0.0342173	0.0342167	0.0000160
VENUS	2051-07-05 19:23	1169.7	0.0403000	0.0319866	0.0156387
EARTH	2055-03-30 15:56	97.5	0.1138966	0.0347387	0.0264038
EARTH	2057-03-03 12:48	> 1 w	0.0408686	0.0342252	0.0034561
EARTH	2059-02-03 02:28	173.8	0.1237689	0.0500607	0.0266976
VENUS	2064-06-03 20:10	1224.7	0.0395163	0.0324801	0.0152170
EARTH	2072-03-29 04:05	455.0	0.1663732	0.1086578	0.0192430
EARTH	2074-03-16 18:11	> 1 d	0.0256043	0.0032782	0.0088535
EARTH	2076-02-03 07:40	66.0	0.0876690	0.0619357	0.0089741
EARTH	2089-03-29 21:25	434.7	0.1255866	0.0044601	0.0430045
VENUS	2090-04-07 07:43	> 1 d	0.0366822	0.0328233	0.0268641
EARTH	2091-03-02 13:58	> 1 w	0.0414180	0.0377787	0.0044518
EARTH	2093-02-02 12:46	968.3	0.1444841	0.0367630	0.0569652
EARTH	2106-03-29 15:32	> 1 d	0.0379992	0.0023463	0.0688800
EARTH	2108-02-12 01:59	> 1 w	0.0333806	0.0333804	0.0000174
VENUS	2114-07-15 08:36	237.3	0.0436415	0.0417794	0.0007162
EARTH	2123-03-31 03:24	> 1 d	0.0691086	0.0039630	0.0663470
EARTH	2125-02-20 14:22	> 1 w	0.0380282	0.0356734	0.0107775

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Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
208.70399746	80.44094220	0.00129789	MINIMUM
149.76696193	38.49350899	0.03491469	MINIMUM
173.28225421	55.27049707	0.04262376	SADDLE
355.15141486	235.56339272	0.48990857	SADDLE
355.46425213	55.98099934	1.50943622	SADDLE
177.73686318	238.39404684	2.03583980	MAXIMUM

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MOID Plots

Click on the images to zoom-in and zoom-out

Level lines of the squared distance function

2023DO

Date in UTC	MJD	σ	Distance ± Width in RE	Stretching in RE/σ	IP	Exp. energy	PS
2057-03-23.822	72445.822	1.056	0.68 ± 0.002	1.65E3	4.89E-4	2.67E-4	-3.50
2059-03-24.020	73176.020	1.084	1.05 ± 0.002	1.03E5	6.96E-6	3.80E-6	-5.38
2062-03-23.868	74271.868	1.046	1.38 ± 0.011	3.11E6	1.92E-7	1.05E-7	-6.97
2062-03-24.047	74272.047	3.670	0.03 ± 0.000	1.71E7	1.05E-10	5.74E-11	-10.24
2065-03-23.902	75367.902	2.408	1.40 ± 0.002	4.63E4	1.36E-6	7.46E-7	-6.16
2066-03-23.909	75732.909	1.033	0.53 ± 0.000	6.17E5	1.37E-6	7.51E-7	-6.16
2068-03-23.424	76463.424	1.022	1.78 ± 0.000	4.06E5	7.99E-7	4.37E-7	-6.42
2073-03-23.839	78289.839	3.507	0.07 ± 0.089	8.18E6	3.92E-10	2.15E-10	-9.77


Based on 52 optical observations (of which 0 are rejected as outliers) from 2023/02/13.477 to 2023/03/26.328.
Coordinates are given on the Target Plane.
Unit is one Earth radius, but impact cross section has radius between 1.89 and 1.89 Earth radii.
Coordinates for LOV = EQU scaled= 1 second= F.
Aegis software version= 4.0, Date of computation=20250305 085843.428 UTC.

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