ASTROSAT CZTI

Data Quality Report

Orbit 15365

Creation date: 2024-06-27T17:07:28.899910
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/AS1A04_126T01_9000002262_15365cztM0_level2.evt modeM0/AS1A04_126T01_9000002262_15365cztM0_level2_quad_clean.evt
Size (bytes)692,449,920129,536,640
Size660.4 MB 123.5 MB
Events in quadrant A4,671,189804,455
Events in quadrant B5,499,010811,473
Events in quadrant C4,988,630811,015
Events in quadrant D5,106,258775,129

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0212152
B0232532
C0213662
D0227942

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02120
B02120
C02120
D02120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A10409750.720530%
B104091631.565953%
C10409810.778173%
D104091531.469882%

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 11480 10412 0 0 0.00% 0.00%
B 11480 10411 32 32 0.28% 0.31%
C 11480 10411 0 0 0.00% 0.00%
D 11480 10411 77 77 0.67% 0.74%

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 9 143 33184 131.13 1204 1179 244.1
A 15 239 10593 38.57 1204 1179 244.1
A 0 226 10576 38.5 1204 1179 244.1
B 10 245 547343 2357.76 1204 1173 231.6
B 0 229 65410 277.3 1204 1173 231.6
B 4 173 30875 128.22 1204 1173 231.6
C 3 233 412092 1504.66 1173 1179 273.1
C 13 61 8382 26.38 1173 1179 273.1
C 10 22 5288 15.05 1173 1179 273.1
D 2 33 265906 930.14 1169 1136 284.7
D 1 255 177039 617.95 1169 1136 284.7
D 13 172 105554 366.82 1169 1136 284.7

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