<p>Mean anomaly is the fraction of an elliptical orbit's period that has elapsed since the orbiting body passed periapsis, expressed as an angle which can be used in calculating the position of that body in the classical two-body problem.
<a href="https://en.wikipedia.org/wiki/Mean_anomaly" rel="nofollow noreferrer">https://en.wikipedia.org/wiki/Mean_anomaly</a></p>
<p>For sure, it is right, that a calculation should be made for a certain epoch.</p>
<p>You may ruse online service for using/editing/creating calculator.
Comprehensive and useful.</p>
<p><a href="https://www.mathworks.com/matlabcentral/fileexchange/58069-mean-anomaly-of-elliptical-orbits-by-bessel-function" rel="nofollow noreferrer">https://www.mathworks.com/matlabcentral/fileexchange/58069-mean-anomaly-of-elliptical-orbits-by-bessel-function</a></p>

CC BY-SA 4.0
2021-08-09T09:05:21.323Z
The way to get the numerical data is to use proposed ways of calculation, or find another. That is why the question about which tools are preferable to be used above. Java, mathworks..?
https://www.fxsolver.com/solve/?
The question about terminology and formula is resolved above.
Lariliss
CC BY-SA 4.0
2021-08-06T11:37:33.727Z
2021-08-06T11:37:33.727Z
Lariliss
<p>I am trying to find a list of all the Mean Anomalies of the planets in the Solar System at the Epoch Jan 2000. I tried to Google it up but couldn't find any result. Can you please share the values or any link to a website that has these?</p>
<p>I am referring to <a href="http://www.stjarnhimlen.se/comp/tutorial.html#10" rel="nofollow noreferrer">this</a> website for the orbital elements including the Mean Anomalies but it doesn't show the mean anomaly of Earth. On that same webpage I found the formula for Mean Anomaly as</p>
<blockquote>
<p>(in degrees)Daily Orbital Motion*(t-T)</p>
</blockquote>
<p>where t is the epoch and T is the Time since Perihelion. Through <a href="https://www.princeton.edu/%7Ewillman/planetary_systems/Sol/" rel="nofollow noreferrer">this</a> website, I found the values for the variables in that equation and tried finding the Mean Anomaly for a few planets. But it doesn't seem to match with the values given on the previous website (<a href="http://www.stjarnhimlen.se/comp/tutorial.html#10" rel="nofollow noreferrer">this one</a>).</p>
<p>So my main question is: Can you please share a table or website with all the orbital elements including the Mean Anomalies of the planets?</p>
<p>A secondary question is: Was I making any mistake while calculating the Mean Anomalies using the formula? If so please share those.</p>

<orbital-elements>
What are the values of the Mean Anomalies of the planets in the Solar System?
Battery Eater
# What are the values of the Mean Anomalies of the planets in the Solar System?

(Asked by: username_0 on 2021-08-05)

I am trying to find a list of all the Mean Anomalies of the planets in the Solar System at the Epoch Jan 2000. I tried to Google it up but couldn't find any result. Can you please share the values or any link to a website that has these?

I am referring to [this](http://www.stjarnhimlen.se/comp/tutorial.html#10) website for the orbital elements including the Mean Anomalies but it doesn't show the mean anomaly of Earth. On that same webpage I found the formula for Mean Anomaly as

> (in degrees)Daily Orbital Motion\*(t-T)

where t is the epoch and T is the Time since Perihelion. Through [this](https://www.princeton.edu/%7Ewillman/planetary_systems/Sol/) website, I found the values for the variables in that equation and tried finding the Mean Anomaly for a few planets. But it doesn't seem to match with the values given on the previous website ([this one](http://www.stjarnhimlen.se/comp/tutorial.html#10)).

So my main question is: Can you please share a table or website with all the orbital elements including the Mean Anomalies of the planets?

A secondary question is: Was I making any mistake while calculating the Mean Anomalies using the formula? If so please share those.

**Tags:** orbital-elements


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## 1 answers

### Answer by username_1 on 2021-08-06. Score: 0

Mean anomaly is the fraction of an elliptical orbit's period that has elapsed since the orbiting body passed periapsis, expressed as an angle which can be used in calculating the position of that body in the classical two-body problem.
<https://en.wikipedia.org/wiki/Mean_anomaly>

For sure, it is right, that a calculation should be made for a certain epoch.

You may ruse online service for using/editing/creating calculator.
Comprehensive and useful.

<https://www.mathworks.com/matlabcentral/fileexchange/58069-mean-anomaly-of-elliptical-orbits-by-bessel-function>

> **Comments:**
> **username_1**: The way to get the numerical data is to use proposed ways of calculation, or find another. That is why the question about which tools are preferable to be used above. Java, mathworks..? https://www.fxsolver.com/solve/? The question about terminology and formula is resolved above.  

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