ASTROSAT CZTI

Data Quality Report

Orbit 09825

Creation date: 2024-06-27T15:51:03.440372
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/AS1G07_020T01_9000001398_09825cztM0_level2.evt modeM0/AS1G07_020T01_9000001398_09825cztM0_level2_quad_clean.evt
Size (bytes)531,881,28087,353,280
Size507.2 MB 83.3 MB
Events in quadrant A3,081,811563,455
Events in quadrant B3,402,030575,850
Events in quadrant C2,897,680564,809
Events in quadrant D6,294,668496,362

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134155
B01436710
C0130097
D02324129

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0150

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6373200.313824%
B6371791.239994%
C637240.062775%
D63684326.783920%

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 7559 6375 7 7 0.09% 0.11%
B 7559 6375 23 23 0.30% 0.36%
C 7559 6375 0 0 0.00% 0.00%
D 7559 6374 338 338 4.47% 5.30%

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 8 15 74564 477.61 764 750 154.5
A 14 111 39523 250.88 764 750 154.5
A 15 174 14375 88.16 764 750 154.5
B 4 239 148864 1019.34 773 756 145.3
B 12 0 79539 542.22 773 756 145.3
B 4 48 55560 377.19 773 756 145.3
C 13 61 5693 28.67 741 745 172.6
C 12 4 4251 20.32 741 745 172.6
C 10 22 2990 13.01 741 745 172.6
D 5 113 2110306 11891.95 708 691 177.4
D 7 71 371774 2091.8 708 691 177.4
D 2 152 324704 1826.47 708 691 177.4

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