ASTROSAT CZTI

Data Quality Report

Orbit 33212

Creation date: 2024-06-27T20:46:09.080039
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_067T01_9000004770_33212cztM0_level2.evt modeM0/AS1A10_067T01_9000004770_33212cztM0_level2_quad_clean.evt
Size (bytes)186,292,80040,651,200
Size177.7 MB 38.8 MB
Events in quadrant A939,577277,412
Events in quadrant B1,320,101268,347
Events in quadrant C990,202270,522
Events in quadrant D2,239,440254,456

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A044411
B054151
C046261
D082061

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0440
B0440
C0440
D0440

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A221510.045147%
B2215853.837472%
C2215160.722348%
D2215873.927765%

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 2215 2215 0 0 0.00% 0.00%
B 2215 2215 63 63 2.84% 2.84%
C 2215 2215 11 11 0.50% 0.50%
D 2215 2215 91 91 4.11% 4.11%

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 13 254 3842 72.47 241 236 49.8
A 13 6 3350 62.59 241 236 49.8
A 14 254 2563 46.77 241 236 49.8
B 5 172 268074 5560.51 239 234 48.2
B 5 200 21535 442.22 239 234 48.2
B 0 190 18936 388.26 239 234 48.2
C 0 10 58991 1033.97 235 237 56.8
C 7 221 8634 147.77 235 237 56.8
C 10 49 2508 39.97 235 237 56.8
D 8 195 898582 14291.25 227 222 62.9
D 2 250 255484 4060.75 227 222 62.9
D 13 249 106204 1685.98 227 222 62.9

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