Observation information
- date-obs: 2015-10-24
- time-obs: 04:33:03.446900000
- date-end: 2015-10-24
- time-end: 04:57:10.445300000
- obs_id: P01_161T04_9000000060
- exposure: 1430.86730661
- sourceid: GRS 1915+105
- observer: parag
- ra_pnt: 288.7983
- dec_pnt: 10.94556
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1P01_161T04_9000000060cztM0_level2_bc.evt
| modeM0/AS1P01_161T04_9000000060cztM0_level2_quad_clean.evt
|
Size (bytes) | 58,538,880 | 21,925,440 |
Size | 55.8 MB
| 20.9 MB
|
Events in quadrant A | 302,120 | 141,204 |
Events in quadrant B | 286,819 | 143,077 |
Events in quadrant C | 273,855 | 139,782 |
Events in quadrant D | 803,487 | 132,151 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 6059 | 0 |
B | 0 | 5914 | 0 |
C | 0 | 5536 | 0 |
D | 0 | 7406 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 28 | 0 |
B | 0 | 28 | 0 |
C | 0 | 28 | 0 |
D | 0 | 28 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 1448 | 2 | 0.138122% |
B | 1448 | 2 | 0.138122% |
C | 1448 | 2 | 0.138122% |
D | 1448 | 59 | 4.074586% |
Noise dominated fraction
Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.
Quadrant |
# 1 sec bins |
Bins with >0 counts |
Bins with >2000 counts |
High rate bins dominated by noise |
Noise dominated (total time) |
Noise dominated (detector-on time) |
Marked lightcurve |
A | 1448 | 1448 | 0 | 0 | 0.00% | 0.00% |  |
B | 1448 | 1448 | 0 | 0 | 0.00% | 0.00% |  |
C | 1448 | 1448 | 0 | 0 | 0.00% | 0.00% |  |
D | 1448 | 1448 | 16 | 16 | 1.10% | 1.10% |  |
Top noisy pixels
Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1
Pixel properties |
Quadrant properties |
Quadrant |
DetID |
PixID |
Counts |
Sigma |
Mean |
Median |
Sigma |
A | 0 | 238 | 27565 | 1805.02 | 62 | 60 | 15.2 |
A | 15 | 200 | 9340 | 609.0 | 62 | 60 | 15.2 |
A | 12 | 243 | 5218 | 338.49 | 62 | 60 | 15.2 |
B | 4 | 82 | 16610 | 1172.28 | 63 | 62 | 14.1 |
B | 0 | 23 | 3341 | 232.29 | 63 | 62 | 14.1 |
B | 15 | 82 | 3149 | 218.69 | 63 | 62 | 14.1 |
C | 3 | 159 | 22118 | 1423.04 | 61 | 59 | 15.5 |
C | 3 | 9 | 5404 | 344.81 | 61 | 59 | 15.5 |
C | 5 | 234 | 3350 | 212.3 | 61 | 59 | 15.5 |
D | 13 | 7 | 321503 | 20694.79 | 59 | 57 | 15.5 |
D | 1 | 4 | 83408 | 5366.16 | 59 | 57 | 15.5 |
D | 7 | 85 | 43198 | 2777.43 | 59 | 57 | 15.5 |
Detector plane histogram (DPH)
Histogram calculated using DETX and DETY for each event in the final _common_clean file
Quadrant A |
 |
 |
Quadrant B |
Quadrant D |
 |
 |
Quadrant C |
Count rate plots and images
Plot type |
Count rate plots |
Images |
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data. |
 |
 |
Quadrant-wise count rates
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins |
 |
 |
Housekeeping plots
Parameter |
Plot |
CZT HV Monitor |  |
D_VDD |  |
Temperature 1 |  |
Veto HV Monitor |  |
Veto LLD |  |
Alpha Counter |  |
_CPM_Rate |  |
CZT Counter |  |
+2.5 Volts monitor |  |
+5 Volts monitor |  |
_ROLL_ROT |  |
_Roll_DEC |  |
_Roll_RA |  |
Veto Counter |  |