Observation information
- date-obs: 2020-10-01
- time-obs: 01:15:48.927400000
- date-end: 2020-10-02
- time-end: 13:21:15.888500000
- obs_id: T03_231T01_9000003910
- exposure: 69375.3598769
- sourceid: GRS 1915+105
- observer: jitheshthejus
- ra_pnt: 288.7981
- dec_pnt: 10.94577
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1T03_231T01_9000003910cztM0_level2_bc.evt
| modeM0/AS1T03_231T01_9000003910cztM0_level2_quad_clean.evt
|
Size (bytes) | 5,026,616,640 | 1,472,160,960 |
Size | 4.7 GB
| 1.4 GB
|
Events in quadrant A | 31,355,856 | 9,456,871 |
Events in quadrant B | 36,483,340 | 9,516,964 |
Events in quadrant C | 23,155,435 | 9,208,810 |
Events in quadrant D | 53,483,077 | 8,593,505 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 2324 | 0 |
B | 0 | 2324 | 0 |
C | 0 | 2324 | 0 |
D | 0 | 2324 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 268068 | 0 |
B | 0 | 279962 | 0 |
C | 0 | 237367 | 0 |
D | 0 | 339895 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 160 | 0 |
B | 0 | 160 | 0 |
C | 0 | 160 | 0 |
D | 0 | 160 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 114011 | 3483 | 3.054968% |
B | 114011 | 3207 | 2.812886% |
C | 114011 | 1935 | 1.697205% |
D | 114011 | 7561 | 6.631816% |
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 | 129181 | 114015 | 10 | 10 | 0.01% | 0.01% |  |
B | 129181 | 114014 | 268 | 268 | 0.21% | 0.24% |  |
C | 129181 | 114015 | 4 | 4 | 0.00% | 0.00% |  |
D | 129181 | 114014 | 2016 | 2016 | 1.56% | 1.77% |  |
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 | 14 | 235 | 6834388 | 5247.94 | 6050 | 5941 | 1301.2 |
A | 6 | 16 | 577633 | 439.37 | 6050 | 5941 | 1301.2 |
A | 12 | 189 | 489762 | 371.84 | 6050 | 5941 | 1301.2 |
B | 0 | 189 | 7923449 | 6889.86 | 6123 | 5966 | 1149.2 |
B | 3 | 112 | 2477495 | 2150.74 | 6123 | 5966 | 1149.2 |
B | 10 | 245 | 1554385 | 1347.45 | 6123 | 5966 | 1149.2 |
C | 15 | 208 | 306852 | 218.95 | 5879 | 5857 | 1374.7 |
C | 2 | 16 | 131848 | 91.65 | 5879 | 5857 | 1374.7 |
C | 3 | 233 | 82519 | 55.76 | 5879 | 5857 | 1374.7 |
D | 1 | 52 | 20783415 | 15330.64 | 5811 | 5636 | 1355.3 |
D | 7 | 38 | 3292246 | 2424.99 | 5811 | 5636 | 1355.3 |
D | 13 | 172 | 2537241 | 1867.92 | 5811 | 5636 | 1355.3 |
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 |  |