(meteorobs) about the population indices

[sahar rahmani]

 Hello guys
We are going to analyze the data of Geminids meteor shower but we don’t know how we can account the population index. We analyzed the data of Geminids meteor shower tow years ago. The method used there to obtain the population indices (the method suggested by IMO) consists of the equation mentioned below:

å Ni (lm – mi) / N

 

In which Ni&shy; is the number of the meteors observed with the magnitude of mi (the letter “i” can gain different values considering the magnitude distribution.), lm is the limiting magnitude and N is the total number of the meteors observed in the considering interval. This equation delivers a set of corresponding <Delta m>. Using Table, we converted <Delta m> into population indices (this will give us the r-values for our main effective observing periods.).

r

<Delta m>

r

<Delta m>

1.5

5.830

3.1

2.750

1.6

5.301

3.2

2.682

1.7

4.894

3.3

2.618

1.8

4.568

3.4

2.559

1.9

4.298

3.5

2.503

2.0

4.069

3.6

2.450

2.1

3.872

3.7

2.400

2.2

3.700

3.8

2.353

2.3

3.549

3.9

2.308

2.4

3.413

4.0

2.266

2.5

3.291

4.1

2.226

2.6

3.180

4.2

2.187

2.7

3.079

4.3

2.151

2.8

2.987

4.4

2.116

2.9

2.902

4.5

2.082

3.0

2.823

 

 

 

But we wants to know where this table come from and how can we account them. Can you tell us about it?

Sahar Rahmani

 

 

 


		
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