ASTROSAT CZTI

Data Quality Report

Orbit 17613

Creation date: 2024-06-27T17:38:35.052206
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1A05_056T01_9000002604_17613cztM0_level2.evt modeM0/AS1A05_056T01_9000002604_17613cztM0_level2_quad_clean.evt
Size (bytes)141,995,52040,982,400
Size135.4 MB 39.1 MB
Events in quadrant A955,343276,704
Events in quadrant B956,623273,633
Events in quadrant C1,325,433259,676
Events in quadrant D903,449264,503

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A046270
B046120
C054200
D046460

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0460
B0460
C0460
D0460

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A230410.043403%
B230500.000000%
C230570.303688%
D230550.216920%

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 2304 2304 1 1 0.04% 0.04%
B 2305 2305 0 0 0.00% 0.00%
C 2305 2305 0 0 0.00% 0.00%
D 2305 2305 5 5 0.22% 0.22%

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 0 13 7677 143.68 245 240 51.8
A 14 237 7282 136.05 245 240 51.8
A 0 226 2109 36.11 245 240 51.8
B 12 111 5756 112.23 243 237 49.2
B 11 111 4792 92.62 243 237 49.2
B 14 111 4199 80.57 243 237 49.2
C 3 233 372418 6644.26 230 231 56.0
C 14 238 35264 625.41 230 231 56.0
C 5 218 19368 341.63 230 231 56.0
D 7 223 15014 254.99 234 228 58.0
D 2 234 8551 143.53 234 228 58.0
D 14 226 2247 34.82 234 228 58.0

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