ASTROSAT CZTI

Data Quality Report

Orbit 29297

Creation date: 2024-06-27T20:02:29.953302
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_050T01_9000004212_29297cztM0_level2.evt modeM0/AS1A10_050T01_9000004212_29297cztM0_level2_quad_clean.evt
Size (bytes)745,871,04075,006,720
Size711.3 MB 71.5 MB
Events in quadrant A2,888,151511,606
Events in quadrant B3,109,469513,983
Events in quadrant C9,774,325419,190
Events in quadrant D6,455,999451,069

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0115261
B0123551
C0327375
D0230091

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01080
B01080
C01080
D01080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5354370.691072%
B5355901.680672%
C5354310958.068734%
D535472213.485245%

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 6679 5355 0 0 0.00% 0.00%
B 6680 5356 11 11 0.16% 0.21%
C 6679 5355 2269 2269 33.97% 42.37%
D 6679 5355 551 551 8.25% 10.29%

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 13 254 11186 70.95 746 734 147.3
A 5 98 8187 50.59 746 734 147.3
A 0 226 6373 38.28 746 734 147.3
B 10 245 164162 1198.93 728 716 136.3
B 0 229 33246 238.62 728 716 136.3
B 0 190 21128 149.73 728 716 136.3
C 3 233 7318319 53943.99 583 588 135.7
C 14 238 121581 891.92 583 588 135.7
C 14 254 46646 339.52 583 588 135.7
D 1 52 2050524 12642.56 690 673 162.1
D 8 195 1064996 6564.26 690 673 162.1
D 7 69 196746 1209.29 690 673 162.1

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