Observation information
- date-obs: 2015-11-07
- time-obs: 03:52:34.326200000
- date-end: 2015-11-08
- time-end: 12:44:14.201900000
- obs_id: P01_126T01_9000000084
- exposure: 54862.8030522
- sourceid: Crab-SSM1-P1
- observer: ramadevi
- ra_pnt: 80.3923
- dec_pnt: -68.1274
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1P01_126T01_9000000084cztM0_level2.fits
| modeM0/AS1P01_126T01_9000000084cztM0_level2_quad_clean.evt
|
Size (bytes) | 591,615,360 | 789,497,280 |
Size | 564.2 MB
| 752.9 MB
|
Events in quadrant A | 3,295,706 | 4,822,702 |
Events in quadrant B | 3,349,650 | 4,955,162 |
Events in quadrant C | 3,322,482 | 4,729,158 |
Events in quadrant D | 2,808,910 | 4,266,205 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 379 | 0 |
B | 0 | 379 | 0 |
C | 0 | 379 | 0 |
D | 0 | 381 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 331805 | 0 |
B | 0 | 324937 | 0 |
C | 0 | 296907 | 0 |
D | 0 | 322371 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 1532 | 0 |
B | 0 | 1532 | 0 |
C | 0 | 1532 | 0 |
D | 0 | 1532 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 74953 | 1042 | 1.390205% |
B | 74953 | 331 | 0.441610% |
C | 74953 | 105 | 0.140088% |
D | 74953 | 1284 | 1.713074% |
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 | 117003 | 74950 | 0 | 0 | 0.00% | 0.00% |  |
B | 117003 | 74948 | 0 | 0 | 0.00% | 0.00% |  |
C | 117003 | 74951 | 0 | 0 | 0.00% | 0.00% |  |
D | 117003 | 74935 | 0 | 0 | 0.00% | 0.00% |  |
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 | 7 | 110 | 3275 | 12.27 | 856 | 800 | 201.6 |
A | 0 | 29 | 3004 | 10.93 | 856 | 800 | 201.6 |
A | 12 | 45 | 2315 | 7.51 | 856 | 800 | 201.6 |
B | 2 | 9 | 2833 | 13.03 | 883 | 843 | 152.8 |
B | 2 | 8 | 2228 | 9.07 | 883 | 843 | 152.8 |
B | 14 | 254 | 2180 | 8.75 | 883 | 843 | 152.8 |
C | 12 | 241 | 2380 | 7.31 | 878 | 814 | 214.3 |
C | 2 | 191 | 2358 | 7.2 | 878 | 814 | 214.3 |
C | 1 | 81 | 2231 | 6.61 | 878 | 814 | 214.3 |
D | 6 | 44 | 2231 | 7.78 | 801 | 737 | 192.0 |
D | 11 | 82 | 2107 | 7.14 | 801 | 737 | 192.0 |
D | 6 | 231 | 2087 | 7.03 | 801 | 737 | 192.0 |
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 |  |