ASTROSAT CZTI

Data Quality Report

Orbit 28712

Creation date: 2024-06-27T19:53:06.233832
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/AS1A10_058T09_9000004100_28712cztM0_level2.evt modeM0/AS1A10_058T09_9000004100_28712cztM0_level2_quad_clean.evt
Size (bytes)91,463,04027,584,640
Size87.2 MB 26.3 MB
Events in quadrant A644,261186,206
Events in quadrant B664,401191,217
Events in quadrant C700,581181,374
Events in quadrant D654,464163,827

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A09169
B07951
C09452
D09365

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0117
B095
C084
D0108

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A089425844
B090465913
C096446528
D01385410824

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A153600.000000%
B155250.322165%
C152680.524246%
D142180.562984%

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 3487 1909 0 0 0.00% 0.00%
B 3480 1939 0 0 0.00% 0.00%
C 3474 1881 0 0 0.00% 0.00%
D 3447 1750 5 5 0.15% 0.29%

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 2902 78.18 165 162 35.0
A 13 254 2821 75.86 165 162 35.0
A 14 239 2474 65.96 165 162 35.0
B 10 247 4274 120.47 168 163 34.1
B 12 111 3914 109.92 168 163 34.1
B 11 111 3546 99.13 168 163 34.1
C 3 233 49662 1269.72 158 159 39.0
C 14 238 28470 726.16 158 159 39.0
C 14 254 4582 113.45 158 159 39.0
D 8 195 46620 1262.26 144 139 36.8
D 1 52 44741 1211.23 144 139 36.8
D 7 80 8319 222.14 144 139 36.8

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