ASTROSAT CZTI

Data Quality Report

Orbit 07394

Creation date: 2024-06-27T15:19:15.225869
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/AS1G06_117T01_9000001012_07394cztM0_level2.evt modeM0/AS1G06_117T01_9000001012_07394cztM0_level2_quad_clean.evt
Size (bytes)234,832,32039,769,920
Size224.0 MB 37.9 MB
Events in quadrant A1,616,033244,909
Events in quadrant B1,595,084252,677
Events in quadrant C1,566,898254,712
Events in quadrant D2,123,631233,198

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0221
B0222
C0223
D0235

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130666139
B0128916153
C0125455864
D0159157571

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A011949
B012157
C011855
D011959

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3066642.087410%
B3055541.767594%
C3088471.522021%
D30191123.709838%

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 7511 3333 4 4 0.05% 0.12%
B 7515 3324 1 1 0.01% 0.03%
C 7510 3350 0 0 0.00% 0.00%
D 8663 3290 28 28 0.32% 0.85%

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 14 111 41068 482.79 403 395 84.2
A 15 234 22035 256.87 403 395 84.2
A 0 226 3761 39.95 403 395 84.2
B 4 81 13569 168.92 405 396 78.0
B 0 214 12585 156.31 405 396 78.0
B 12 111 7434 90.25 405 396 78.0
C 13 61 3059 28.54 399 400 93.2
C 10 22 2770 25.44 399 400 93.2
C 1 16 1955 16.69 399 400 93.2
D 12 233 238495 2478.71 387 376 96.1
D 12 221 157378 1634.32 387 376 96.1
D 2 216 114642 1189.46 387 376 96.1

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