Observation information
- date-obs: 2017-09-27
- time-obs: 02:55:30.527000000
- date-end: 2017-09-27
- time-end: 12:33:25.531500000
- obs_id: G07_003T02_9000001564
- exposure: 18658.2992597
- sourceid: NGC 7252
- observer: koshy
- ra_pnt: 335.1862
- dec_pnt: -24.67833
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1G07_003T02_9000001564cztM0_level2.evt
| modeM0/AS1G07_003T02_9000001564cztM0_level2_quad_clean.evt
|
Size (bytes) | 2,727,216,000 | 367,044,480 |
Size | 2.5 GB
| 350.0 MB
|
Events in quadrant A | 26,152,642 | 2,181,470 |
Events in quadrant B | 21,895,533 | 2,301,907 |
Events in quadrant C | 13,574,222 | 2,361,989 |
Events in quadrant D | 18,958,227 | 2,213,924 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 49 | 0 |
B | 0 | 49 | 0 |
C | 0 | 49 | 0 |
D | 0 | 49 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 97659 | 0 |
B | 0 | 84748 | 0 |
C | 0 | 61629 | 0 |
D | 0 | 76688 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 606 | 0 |
B | 0 | 606 | 0 |
C | 0 | 606 | 0 |
D | 0 | 606 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 29918 | 3659 | 12.230096% |
B | 29920 | 2342 | 7.827540% |
C | 29920 | 238 | 0.795455% |
D | 29920 | 1132 | 3.783422% |
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 | 34676 | 29923 | 2621 | 2621 | 7.56% | 8.76% |  |
B | 34676 | 29923 | 1327 | 1327 | 3.83% | 4.43% |  |
C | 34676 | 29925 | 19 | 19 | 0.05% | 0.06% |  |
D | 34676 | 29924 | 830 | 830 | 2.39% | 2.77% |  |
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 | 8 | 5 | 12896510 | 19272.11 | 3337 | 3269 | 669.0 |
A | 4 | 2 | 328589 | 486.27 | 3337 | 3269 | 669.0 |
A | 15 | 174 | 32897 | 44.29 | 3337 | 3269 | 669.0 |
B | 4 | 239 | 7506381 | 11521.73 | 3450 | 3369 | 651.2 |
B | 15 | 204 | 565249 | 862.83 | 3450 | 3369 | 651.2 |
B | 0 | 214 | 186918 | 281.86 | 3450 | 3369 | 651.2 |
C | 14 | 234 | 183240 | 228.16 | 3427 | 3443 | 788.0 |
C | 13 | 61 | 25272 | 27.7 | 3427 | 3443 | 788.0 |
C | 8 | 222 | 18837 | 19.53 | 3427 | 3443 | 788.0 |
D | 1 | 52 | 1472940 | 1825.8 | 3373 | 3291 | 804.9 |
D | 12 | 233 | 948767 | 1174.6 | 3373 | 3291 | 804.9 |
D | 13 | 138 | 914555 | 1132.1 | 3373 | 3291 | 804.9 |
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 |  |