Observation information
- date-obs: 2018-10-23
- time-obs: 07:48:38.848900000
- date-end: 2018-10-24
- time-end: 12:55:00.774200000
- obs_id: C04_009T01_9000002448
- exposure: 89020.001625
- sourceid: NGC 188
- observer: annapurni
- ra_pnt: 12.08
- dec_pnt: 85.22392
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1C04_009T01_9000002448cztM0_level2_bc.evt
| modeM0/AS1C04_009T01_9000002448cztM0_level2_quad_clean.evt
|
Size (bytes) | 3,232,497,600 | 1,683,694,080 |
Size | 3.0 GB
| 1.6 GB
|
Events in quadrant A | 19,491,117 | 11,281,631 |
Events in quadrant B | 24,033,242 | 11,522,940 |
Events in quadrant C | 22,127,993 | 11,222,264 |
Events in quadrant D | 26,127,619 | 10,821,894 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 151 | 0 |
B | 0 | 151 | 0 |
C | 0 | 151 | 0 |
D | 0 | 151 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 190031 | 0 |
B | 0 | 204728 | 0 |
C | 0 | 198792 | 0 |
D | 0 | 211401 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 1828 | 0 |
B | 0 | 1828 | 0 |
C | 0 | 1828 | 0 |
D | 0 | 1828 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 89803 | 1087 | 1.210427% |
B | 89803 | 1282 | 1.427569% |
C | 89803 | 1127 | 1.254969% |
D | 89803 | 2672 | 2.975402% |
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 | 104784 | 89805 | 40 | 40 | 0.04% | 0.04% |  |
B | 104784 | 89805 | 26 | 26 | 0.02% | 0.03% |  |
C | 104784 | 89807 | 0 | 0 | 0.00% | 0.00% |  |
D | 104784 | 89805 | 442 | 442 | 0.42% | 0.49% |  |
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 | 174 | 1295384 | 1304.04 | 4536 | 4450 | 989.9 |
A | 9 | 143 | 331283 | 330.15 | 4536 | 4450 | 989.9 |
A | 15 | 69 | 327174 | 326.0 | 4536 | 4450 | 989.9 |
B | 15 | 35 | 1444918 | 1645.13 | 4624 | 4509 | 875.6 |
B | 0 | 85 | 870751 | 989.36 | 4624 | 4509 | 875.6 |
B | 0 | 189 | 699810 | 794.12 | 4624 | 4509 | 875.6 |
C | 3 | 233 | 3539318 | 3349.01 | 4473 | 4458 | 1055.5 |
C | 7 | 247 | 1226690 | 1157.97 | 4473 | 4458 | 1055.5 |
C | 3 | 232 | 110826 | 100.78 | 4473 | 4458 | 1055.5 |
D | 1 | 52 | 4723792 | 4488.54 | 4489 | 4328 | 1051.4 |
D | 2 | 16 | 1843469 | 1749.15 | 4489 | 4328 | 1051.4 |
D | 10 | 70 | 795798 | 752.74 | 4489 | 4328 | 1051.4 |
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 |  |