Observation information
- date-obs: 2017-01-12
- time-obs: 00:19:55.889800000
- date-end: 2017-01-13
- time-end: 16:50:27.887600000
- obs_id: T01_151T01_9000000960
- exposure: 81918.6995469
- sourceid: ngc1275
- observer: varsha
- ra_pnt: 49.95067
- dec_pnt: 41.5117
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1T01_151T01_9000000960cztM0_level2.evt
| modeM0/AS1T01_151T01_9000000960cztM0_level2_quad_clean.evt
|
Size (bytes) | 8,274,824,640 | 1,624,268,160 |
Size | 7.7 GB
| 1.5 GB
|
Events in quadrant A | 58,759,788 | 10,343,081 |
Events in quadrant B | 62,814,013 | 10,376,228 |
Events in quadrant C | 56,521,590 | 10,154,212 |
Events in quadrant D | 64,127,307 | 9,816,574 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 2532 | 0 |
B | 0 | 2532 | 0 |
C | 0 | 2532 | 0 |
D | 0 | 2532 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 258635 | 0 |
B | 0 | 268188 | 0 |
C | 0 | 254892 | 0 |
D | 0 | 271638 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 217 | 0 |
B | 0 | 217 | 0 |
C | 0 | 217 | 0 |
D | 0 | 217 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 124191 | 1818 | 1.463874% |
B | 124191 | 2159 | 1.738451% |
C | 124191 | 947 | 0.762535% |
D | 124191 | 2010 | 1.618475% |
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 | 145216 | 124216 | 251 | 251 | 0.17% | 0.20% |  |
B | 145216 | 124216 | 485 | 485 | 0.33% | 0.39% |  |
C | 145216 | 124216 | 8 | 8 | 0.01% | 0.01% |  |
D | 145216 | 124216 | 936 | 936 | 0.64% | 0.75% |  |
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 | 239 | 761086 | 250.14 | 14864 | 14543 | 2984.4 |
A | 15 | 234 | 388617 | 125.34 | 14864 | 14543 | 2984.4 |
A | 13 | 248 | 232761 | 73.12 | 14864 | 14543 | 2984.4 |
B | 4 | 239 | 1489486 | 525.7 | 14920 | 14576 | 2805.6 |
B | 0 | 214 | 1216164 | 428.28 | 14920 | 14576 | 2805.6 |
B | 0 | 228 | 828399 | 290.07 | 14920 | 14576 | 2805.6 |
C | 10 | 22 | 230382 | 65.1 | 14391 | 14443 | 3317.2 |
C | 13 | 61 | 113106 | 29.74 | 14391 | 14443 | 3317.2 |
C | 1 | 16 | 89259 | 22.55 | 14391 | 14443 | 3317.2 |
D | 8 | 195 | 4111000 | 1173.33 | 14431 | 13988 | 3491.8 |
D | 1 | 239 | 1355567 | 384.21 | 14431 | 13988 | 3491.8 |
D | 14 | 34 | 1101680 | 311.5 | 14431 | 13988 | 3491.8 |
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 |  |