ASTROSAT CZTI

Data Quality Report

Orbit 14368

Creation date: 2024-06-27T16:54:21.595624
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/AS1T02_046T01_9000002116_14368cztM0_level2.evt modeM0/AS1T02_046T01_9000002116_14368cztM0_level2_quad_clean.evt
Size (bytes)141,220,80020,733,120
Size134.7 MB 19.8 MB
Events in quadrant A914,152127,035
Events in quadrant B1,043,582127,282
Events in quadrant C990,425121,442
Events in quadrant D1,205,210120,980

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0360
B0360
C0360
D0360

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A037581
B042311
C040291
D047741

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1779110.618325%
B1779261.461495%
C177920.112423%
D1779874.890388%

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 1780 1780 2 2 0.11% 0.11%
B 1780 1780 8 8 0.45% 0.45%
C 1780 1780 0 0 0.00% 0.00%
D 1780 1780 73 73 4.10% 4.10%

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 69 16570 335.15 228 224 48.8
A 12 189 9351 187.13 228 224 48.8
A 8 15 3587 68.95 228 224 48.8
B 0 229 51316 1121.38 228 222 45.6
B 0 182 48252 1054.14 228 222 45.6
B 0 190 27065 589.14 228 222 45.6
C 3 233 131508 2461.01 220 221 53.3
C 13 61 1608 26.0 220 221 53.3
C 10 22 672 8.45 220 221 53.3
D 1 52 296338 5618.61 214 208 52.7
D 10 172 51373 970.78 214 208 52.7
D 2 120 37164 701.18 214 208 52.7

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