Observation information
- date-obs: 2018-05-09
- time-obs: 20:07:00.685900000
- date-end: 2018-05-10
- time-end: 17:16:09.643200000
- obs_id: A04_218T04_9000002086
- exposure: 39236.9857692
- sourceid: SWIFT J1835.0+3240
- observer: gulabd
- ra_pnt: 278.7641
- dec_pnt: 32.69635
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1A04_218T04_9000002086cztM0_level2_bc.evt
| modeM0/AS1A04_218T04_9000002086cztM0_level2_quad_clean.evt
|
Size (bytes) | 2,687,169,600 | 831,545,280 |
Size | 2.5 GB
| 793.0 MB
|
Events in quadrant A | 13,645,760 | 5,259,266 |
Events in quadrant B | 14,586,158 | 5,246,592 |
Events in quadrant C | 15,789,126 | 5,384,574 |
Events in quadrant D | 33,017,748 | 4,921,613 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 133560 | 0 |
B | 0 | 137169 | 0 |
C | 0 | 136201 | 0 |
D | 0 | 200624 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 1296 | 0 |
B | 0 | 1296 | 0 |
C | 0 | 1296 | 0 |
D | 0 | 1296 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 94 | 0 |
B | 0 | 94 | 0 |
C | 0 | 96 | 0 |
D | 0 | 96 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 63784 | 775 | 1.215038% |
B | 63786 | 940 | 1.473678% |
C | 63779 | 612 | 0.959563% |
D | 63781 | 5633 | 8.831784% |
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 | 76151 | 63808 | 8 | 8 | 0.01% | 0.01% |  |
B | 76151 | 63809 | 3 | 3 | 0.00% | 0.00% |  |
C | 76151 | 63807 | 1 | 1 | 0.00% | 0.00% |  |
D | 76151 | 63800 | 1655 | 1655 | 2.17% | 2.59% |  |
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 | 12 | 189 | 284728 | 381.5 | 3396 | 3336 | 737.6 |
A | 8 | 15 | 106575 | 139.97 | 3396 | 3336 | 737.6 |
A | 11 | 29 | 55673 | 70.96 | 3396 | 3336 | 737.6 |
B | 10 | 244 | 474651 | 743.59 | 3394 | 3303 | 633.9 |
B | 0 | 189 | 276364 | 430.77 | 3394 | 3303 | 633.9 |
B | 3 | 209 | 209980 | 326.05 | 3394 | 3303 | 633.9 |
C | 3 | 233 | 2583386 | 3417.88 | 3352 | 3295 | 754.9 |
C | 14 | 234 | 55024 | 68.53 | 3352 | 3295 | 754.9 |
C | 10 | 22 | 32568 | 38.78 | 3352 | 3295 | 754.9 |
D | 7 | 80 | 11680507 | 15576.65 | 3230 | 3130 | 749.7 |
D | 8 | 195 | 3386195 | 4512.73 | 3230 | 3130 | 749.7 |
D | 1 | 52 | 2541878 | 3386.48 | 3230 | 3130 | 749.7 |
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 |  |