ASTROSAT CZTI

Data Quality Report

Orbit 21058

Creation date: 2024-06-27T18:23:04.261894
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/AS1A05_101T03_9000003112_21058cztM0_level2.evt modeM0/AS1A05_101T03_9000003112_21058cztM0_level2_quad_clean.evt
Size (bytes)236,053,44038,376,000
Size225.1 MB 36.6 MB
Events in quadrant A1,652,544234,218
Events in quadrant B1,806,142244,375
Events in quadrant C1,674,630233,647
Events in quadrant D1,796,982222,411

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0660
B0660
C0660
D0660

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A068111
B072581
C068261
D073611

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3191411.284864%
B3191672.099655%
C3191541.692259%
D3191401.253526%

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 4376 3192 0 0 0.00% 0.00%
B 4376 3192 17 17 0.39% 0.53%
C 4376 3192 0 0 0.00% 0.00%
D 4376 3192 9 9 0.21% 0.28%

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 4337 44.37 429 420 88.3
A 0 226 3757 37.8 429 420 88.3
A 3 137 3471 34.56 429 420 88.3
B 7 220 62668 753.44 431 421 82.6
B 0 219 28680 342.05 431 421 82.6
B 6 36 10934 127.25 431 421 82.6
C 14 238 65479 670.57 412 414 97.0
C 13 61 2955 26.19 412 414 97.0
C 3 9 1201 8.11 412 414 97.0
D 12 233 93123 910.2 415 403 101.9
D 1 52 50174 488.58 415 403 101.9
D 7 238 42229 410.59 415 403 101.9

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