ASTROSAT CZTI

Data Quality Report

Orbit 13478

Creation date: 2024-06-27T16:41:24.600163
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_103T01_9000001988_13478cztM0_level2.evt modeM0/AS1A04_103T01_9000001988_13478cztM0_level2_quad_clean.evt
Size (bytes)700,611,840160,159,680
Size668.2 MB 152.7 MB
Events in quadrant A4,964,2301,042,950
Events in quadrant B5,182,0281,061,947
Events in quadrant C4,952,1111,032,095
Events in quadrant D5,404,092983,071

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0218903
B0222972
C0218332
D0237882

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02140
B02140
C02140
D02140

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A105651151.088500%
B105651801.703739%
C10565740.700426%
D105651491.410317%

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 12471 10568 0 0 0.00% 0.00%
B 12471 10567 30 30 0.24% 0.28%
C 12471 10569 1 1 0.01% 0.01%
D 12471 10569 99 99 0.79% 0.94%

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 1 162 27439 102.02 1273 1247 256.7
A 11 29 15029 53.68 1273 1247 256.7
A 8 15 13251 46.75 1273 1247 256.7
B 3 64 94136 383.92 1277 1247 241.9
B 0 214 59336 240.09 1277 1247 241.9
B 0 230 37232 148.73 1277 1247 241.9
C 3 233 114628 397.77 1239 1245 285.0
C 13 61 9113 27.6 1239 1245 285.0
C 14 234 6221 17.46 1239 1245 285.0
D 12 110 523409 1814.74 1218 1187 287.8
D 13 249 175924 607.22 1218 1187 287.8
D 13 122 64770 220.95 1218 1187 287.8

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