ASTROSAT CZTI

Data Quality Report

Orbit 12335

Creation date: 2024-06-27T16:25:41.890384
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_130T01_9000001822_12335cztM0_level2.evt modeM0/AS1A04_130T01_9000001822_12335cztM0_level2_quad_clean.evt
Size (bytes)132,243,84024,647,040
Size126.1 MB 23.5 MB
Events in quadrant A982,231158,727
Events in quadrant B923,773162,290
Events in quadrant C774,105163,471
Events in quadrant D1,222,940152,596

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A038812
B036811
C032591
D045941

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0300
B0300
C0300
D0300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A14621047.113543%
B1462956.497948%
C1462553.761970%
D14621188.071135%

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 1463 1463 7 7 0.48% 0.48%
B 1463 1463 4 4 0.27% 0.27%
C 1463 1463 1 1 0.07% 0.07%
D 1463 1463 45 45 3.08% 3.08%

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 3 1 118465 2764.18 197 192 42.8
A 13 251 33350 774.94 197 192 42.8
A 1 162 27336 634.39 197 192 42.8
B 0 85 64509 1614.64 194 189 39.8
B 4 239 32721 816.66 194 189 39.8
B 0 219 23897 595.15 194 189 39.8
C 4 254 37971 818.32 188 189 46.2
C 13 61 1311 24.3 188 189 46.2
C 8 222 1049 18.63 188 189 46.2
D 1 52 376989 7952.43 188 182 47.4
D 14 34 76265 1605.72 188 182 47.4
D 7 223 18263 381.6 188 182 47.4

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