ASTROSAT CZTI

Data Quality Report

Orbit 21058

Creation date: 2024-06-27T18:23:03.395449
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_025T04_9000003110_21058cztM0_level2.evt modeM0/AS1A05_025T04_9000003110_21058cztM0_level2_quad_clean.evt
Size (bytes)169,185,60021,274,560
Size161.3 MB 20.3 MB
Events in quadrant A1,122,747125,688
Events in quadrant B1,241,713125,346
Events in quadrant C1,096,293118,014
Events in quadrant D1,510,088114,140

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0440
B0440
C0440
D0440

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A047270
B050850
C046310
D059450

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A221850.225428%
B2219241.081568%
C221960.270392%
D2219954.281208%

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 2218 2218 4 4 0.18% 0.18%
B 2219 2219 7 7 0.32% 0.32%
C 2219 2219 0 0 0.00% 0.00%
D 2219 2219 82 82 3.70% 3.70%

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 12 96 14466 245.25 287 282 57.8
A 13 254 3274 51.73 287 282 57.8
A 0 226 2556 39.32 287 282 57.8
B 0 197 61774 1112.79 287 281 55.3
B 7 220 31255 560.51 287 281 55.3
B 0 190 9799 172.24 287 281 55.3
C 14 238 43915 684.95 269 271 63.7
C 13 61 1940 26.19 269 271 63.7
C 3 9 1033 11.96 269 271 63.7
D 1 52 346114 5187.01 267 259 66.7
D 9 1 73306 1095.53 267 259 66.7
D 12 233 58265 869.95 267 259 66.7

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