ASTROSAT CZTI

Data Quality Report

Orbit 07318

Creation date: 2024-06-27T15:18:37.511442
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/AS1G06_164T01_9000001004_07318cztM0_level2.evt modeM0/AS1G06_164T01_9000001004_07318cztM0_level2_quad_clean.evt
Size (bytes)688,731,840157,055,040
Size656.8 MB 149.8 MB
Events in quadrant A5,062,2101,015,017
Events in quadrant B5,226,4001,012,287
Events in quadrant C4,834,111996,656
Events in quadrant D4,980,788962,791

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02260
B02260
C02260
D02260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0228222
B0230302
C0224712
D0229022

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A111241341.204603%
B111241501.348436%
C11124990.889968%
D111241211.087738%

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 12269 11125 0 0 0.00% 0.00%
B 12269 11125 6 6 0.05% 0.05%
C 12269 11125 0 0 0.00% 0.00%
D 12269 11125 9 9 0.07% 0.08%

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 15 234 98606 383.27 1252 1221 254.1
A 8 15 85699 332.47 1252 1221 254.1
A 13 248 23482 87.61 1252 1221 254.1
B 0 214 151773 632.85 1258 1228 237.9
B 11 51 125233 521.28 1258 1228 237.9
B 4 81 51776 212.49 1258 1228 237.9
C 9 68 55399 191.52 1218 1224 282.9
C 8 128 13006 41.65 1218 1224 282.9
C 13 61 9281 28.48 1218 1224 282.9
D 1 20 230006 775.64 1212 1169 295.0
D 12 233 46582 153.93 1212 1169 295.0
D 2 14 43673 144.07 1212 1169 295.0

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