ASTROSAT CZTI

Data Quality Report

Orbit 04138

Creation date: 2024-06-27T14:37:54.547898
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/AS1G05_213T01_9000000534_04138cztM0_level2.evt modeM0/AS1G05_213T01_9000000534_04138cztM0_level2_quad_clean.evt
Size (bytes)178,450,56035,444,160
Size170.2 MB 33.8 MB
Events in quadrant A1,088,566238,664
Events in quadrant B1,082,391242,745
Events in quadrant C954,996234,599
Events in quadrant D2,142,277213,346

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A044392
B044511
C040961
D076811

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0420
B0420
C0420
D0420

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1970381.928934%
B1970251.269036%
C197080.406091%
D197028714.568528%

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 3250 1971 17 17 0.52% 0.86%
B 3250 1971 1 1 0.03% 0.05%
C 3250 1971 0 0 0.00% 0.00%
D 3250 1971 340 340 10.46% 17.25%

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 0 118 68308 1253.09 258 253 54.3
A 13 14 13421 242.46 258 253 54.3
A 0 226 9476 169.82 258 253 54.3
B 14 167 25673 495.4 259 253 51.3
B 0 183 12849 245.48 259 253 51.3
B 15 54 11021 209.85 259 253 51.3
C 13 61 2016 30.7 244 245 57.7
C 10 65 706 7.99 244 245 57.7
C 1 16 599 6.14 244 245 57.7
D 1 52 1125138 19199.37 238 231 58.6
D 8 112 25569 432.46 238 231 58.6
D 13 137 21445 362.07 238 231 58.6

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