ASTROSAT CZTI

Data Quality Report

Orbit 16267

Creation date: 2024-06-27T17:20:24.140164
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_182T02_9000002392_16267cztM0_level2.evt modeM0/AS1A05_182T02_9000002392_16267cztM0_level2_quad_clean.evt
Size (bytes)119,594,88033,356,160
Size114.1 MB 31.8 MB
Events in quadrant A798,892232,511
Events in quadrant B1,267,016222,434
Events in quadrant C751,606224,593
Events in quadrant D703,702223,065

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A032342
B047381
C030981
D030121

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0280
B0280
C0280
D0280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1445100.692042%
B144516611.487889%
C1445100.692042%
D144510.069204%

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 1446 1446 2 2 0.14% 0.14%
B 1446 1446 110 110 7.61% 7.61%
C 1446 1446 0 0 0.00% 0.00%
D 1446 1446 0 0 0.00% 0.00%

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 15 174 31055 788.73 192 190 39.1
A 14 4 17553 443.69 192 190 39.1
A 9 143 11344 285.03 192 190 39.1
B 3 112 537463 14801.31 184 181 36.3
B 0 189 5197 138.18 184 181 36.3
B 12 111 3644 95.4 184 181 36.3
C 14 238 30510 695.04 182 184 43.6
C 3 233 9071 203.68 182 184 43.6
C 13 61 1332 26.31 182 184 43.6
D 2 120 6866 148.49 182 177 45.0
D 1 52 4923 105.36 182 177 45.0
D 2 234 3444 72.53 182 177 45.0

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