Observation information
- date-obs: 2017-07-27
- time-obs: 14:18:25.927300000
- date-end: 2017-07-28
- time-end: 04:45:32.949800000
- obs_id: G07_046T01_9000001408
- exposure: 24074.5385006
- sourceid: GRS 1915+105
- observer: jsyadav
- ra_pnt: 288.7981
- dec_pnt: 10.94578
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1G07_046T01_9000001408cztM0_level2.evt
| modeM0/AS1G07_046T01_9000001408cztM0_level2_quad_clean.evt
|
Size (bytes) | 2,800,146,240 | 519,811,200 |
Size | 2.6 GB
| 495.7 MB
|
Events in quadrant A | 20,053,168 | 3,235,016 |
Events in quadrant B | 20,232,419 | 3,332,518 |
Events in quadrant C | 19,053,286 | 3,263,840 |
Events in quadrant D | 22,657,315 | 3,061,009 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 856 | 0 |
B | 0 | 848 | 0 |
C | 0 | 852 | 0 |
D | 0 | 850 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 87708 | 0 |
B | 0 | 87621 | 0 |
C | 0 | 85465 | 0 |
D | 0 | 93857 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 89 | 0 |
B | 0 | 92 | 0 |
C | 0 | 89 | 0 |
D | 0 | 90 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 41556 | 427 | 1.027529% |
B | 41517 | 422 | 1.016451% |
C | 41476 | 224 | 0.540071% |
D | 41504 | 705 | 1.698631% |
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 | 52028 | 42221 | 68 | 68 | 0.13% | 0.16% |  |
B | 52028 | 42232 | 53 | 53 | 0.10% | 0.13% |  |
C | 52028 | 42213 | 2 | 2 | 0.00% | 0.00% |  |
D | 52028 | 42188 | 448 | 448 | 0.86% | 1.06% |  |
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 | 15 | 239 | 499350 | 497.59 | 4978 | 4880 | 993.7 |
A | 14 | 111 | 267552 | 264.33 | 4978 | 4880 | 993.7 |
A | 8 | 15 | 147464 | 143.48 | 4978 | 4880 | 993.7 |
B | 4 | 81 | 479104 | 503.45 | 5012 | 4894 | 941.9 |
B | 0 | 85 | 137605 | 140.89 | 5012 | 4894 | 941.9 |
B | 12 | 111 | 112323 | 114.05 | 5012 | 4894 | 941.9 |
C | 9 | 221 | 53923 | 43.68 | 4866 | 4905 | 1122.3 |
C | 13 | 61 | 35658 | 27.4 | 4866 | 4905 | 1122.3 |
C | 10 | 22 | 24523 | 17.48 | 4866 | 4905 | 1122.3 |
D | 8 | 195 | 1675790 | 1354.02 | 4762 | 4662 | 1234.2 |
D | 1 | 52 | 1435030 | 1158.95 | 4762 | 4662 | 1234.2 |
D | 2 | 16 | 844375 | 680.37 | 4762 | 4662 | 1234.2 |
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 |  |