Observation information
- date-obs: 2017-05-18
- time-obs: 18:35:55.229600000
- date-end: 2017-05-18
- time-end: 23:32:12.214200000
- obs_id: G07_028T01_9000001232
- exposure: 10104.5447141
- sourceid: GRS 1915+105
- observer: santoshv
- ra_pnt: 288.7981
- dec_pnt: 10.94578
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1G07_028T01_9000001232cztM0_level2.evt
| modeM0/AS1G07_028T01_9000001232cztM0_level2_quad_clean.evt
|
Size (bytes) | 1,178,095,680 | 200,373,120 |
Size | 1.1 GB
| 191.1 MB
|
Events in quadrant A | 9,287,713 | 1,248,645 |
Events in quadrant B | 8,822,253 | 1,242,617 |
Events in quadrant C | 7,541,260 | 1,241,039 |
Events in quadrant D | 8,917,333 | 1,204,654 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 324 | 0 |
B | 0 | 340 | 0 |
C | 0 | 332 | 0 |
D | 0 | 338 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 10 | 0 |
B | 0 | 10 | 0 |
C | 0 | 9 | 0 |
D | 0 | 11 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 38536 | 0 |
B | 0 | 37078 | 0 |
C | 0 | 33899 | 0 |
D | 0 | 37438 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 16389 | 300 | 1.830496% |
B | 16388 | 349 | 2.129607% |
C | 16409 | 120 | 0.731306% |
D | 16425 | 289 | 1.759513% |
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 | 18429 | 17012 | 54 | 54 | 0.29% | 0.32% |  |
B | 18427 | 17007 | 101 | 101 | 0.55% | 0.59% |  |
C | 18428 | 16977 | 4 | 4 | 0.02% | 0.02% |  |
D | 18429 | 16994 | 121 | 121 | 0.66% | 0.71% |  |
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 | 8 | 5 | 1485767 | 3719.5 | 1956 | 1914 | 398.9 |
A | 15 | 174 | 109353 | 269.31 | 1956 | 1914 | 398.9 |
A | 4 | 2 | 52817 | 127.6 | 1956 | 1914 | 398.9 |
B | 4 | 48 | 581493 | 1530.28 | 1962 | 1914 | 378.7 |
B | 10 | 16 | 349371 | 917.4 | 1962 | 1914 | 378.7 |
B | 0 | 214 | 116841 | 303.44 | 1962 | 1914 | 378.7 |
C | 10 | 22 | 32755 | 69.56 | 1908 | 1917 | 443.3 |
C | 1 | 3 | 19963 | 40.7 | 1908 | 1917 | 443.3 |
C | 8 | 128 | 18733 | 37.93 | 1908 | 1917 | 443.3 |
D | 13 | 105 | 723609 | 1447.2 | 1894 | 1846 | 498.7 |
D | 8 | 195 | 648749 | 1297.1 | 1894 | 1846 | 498.7 |
D | 2 | 14 | 128366 | 253.68 | 1894 | 1846 | 498.7 |
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 |  |