ASTROSAT CZTI

Data Quality Report

Orbit 31344

Creation date: 2024-06-27T20:27:04.565357
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_053T42_9000004544_31344cztM0_level2.evt modeM0/AS1A10_053T42_9000004544_31344cztM0_level2_quad_clean.evt
Size (bytes)346,060,80046,779,840
Size330.0 MB 44.6 MB
Events in quadrant A2,048,166288,874
Events in quadrant B3,414,657284,710
Events in quadrant C2,233,237276,176
Events in quadrant D2,502,398274,517

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A086231
B0130081
C091611
D0100931

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0840
B0840
C0840
D0840

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4143872.099928%
B41432205.310162%
C41431894.561912%
D41431042.510258%

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 4398 4144 0 0 0.00% 0.00%
B 4398 4144 30 30 0.68% 0.72%
C 4398 4144 0 0 0.00% 0.00%
D 4398 4144 19 19 0.43% 0.46%

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 7306 62.28 530 518 109.0
A 3 137 5461 45.35 530 518 109.0
A 0 226 4619 37.63 530 518 109.0
B 6 159 1184737 11712.49 515 500 101.1
B 0 190 130363 1284.39 515 500 101.1
B 0 230 24716 239.5 515 500 101.1
C 14 238 105665 895.41 495 497 117.5
C 3 233 97277 823.99 495 497 117.5
C 0 10 43300 364.43 495 497 117.5
D 8 195 365809 2980.15 510 496 122.6
D 12 79 57348 463.79 510 496 122.6
D 11 176 43423 350.19 510 496 122.6

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