ASTROSAT CZTI

Data Quality Report

Orbit 49786

Creation date: 2024-12-12T08:33:40.141113
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/AS1A13_037T01_9000006440_49786cztM0_level2.fits modeM0/AS1A13_037T01_9000006440_49786cztM0_level2_quad_clean.evt
Size (bytes)1,077,073,92062,061,120
Size1.0 GB 59.2 MB
Events in quadrant A10,326,227492,394
Events in quadrant B5,471,557737,410
Events in quadrant C6,308,88519,278
Events in quadrant D17,178,57999,605

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01500
B01500
C01500
D01500

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0360110
B0213060
C0239440
D0561050

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7492314541.978110%
B74926378.502403%
C74937493100.000000%
D7493743899.265982%

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 7491 7491 1825 1825 24.36% 24.36%
B 7492 7492 310 310 4.14% 4.14%
C 7492 7492 1038 1038 13.85% 13.85%
D 7492 7492 6007 6007 80.18% 80.18%

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 7 64 1911763 12526.94 594 577 152.6
A 0 98 1780653 11667.57 594 577 152.6
A 15 63 1227654 8042.92 594 577 152.6
B 2 176 1122786 6900.98 770 745 162.6
B 1 207 470422 2888.69 770 745 162.6
B 4 206 202444 1240.53 770 745 162.6
C 15 147 1907579 147454.21 34 33 12.9
C 15 148 1138248 87984.56 34 33 12.9
C 15 164 692494 53527.56 34 33 12.9
D 8 129 6397600 99490.92 143 133 64.3
D 15 142 3327248 51741.99 143 133 64.3
D 15 168 2243990 34895.59 143 133 64.3

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