ASTROSAT CZTI

Data Quality Report

Orbit 14881

Creation date: 2024-06-27T17:00:51.736454
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/AS1T02_054T01_9000002200_14881cztM0_level2.evt modeM0/AS1T02_054T01_9000002200_14881cztM0_level2_quad_clean.evt
Size (bytes)488,309,76094,800,960
Size465.7 MB 90.4 MB
Events in quadrant A3,172,730630,703
Events in quadrant B4,844,880581,480
Events in quadrant C2,989,477623,568
Events in quadrant D3,367,942610,051

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130322
B0183231
C0125781
D0139541

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6092681.116218%
B609277212.672357%
C6092360.590939%
D60921432.347341%

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 7293 6094 5 5 0.07% 0.08%
B 7293 6094 529 529 7.25% 8.68%
C 7293 6094 0 0 0.00% 0.00%
D 7293 6094 70 70 0.96% 1.15%

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 15 239 128859 845.73 754 739 151.5
A 15 31 77753 508.38 754 739 151.5
A 12 189 47078 305.89 754 739 151.5
B 3 64 1341228 10348.54 696 680 129.5
B 10 16 512671 3952.38 696 680 129.5
B 0 189 121866 935.51 696 680 129.5
C 3 233 155046 934.31 723 725 165.2
C 0 207 12572 71.73 723 725 165.2
C 13 61 5225 27.24 723 725 165.2
D 7 254 456836 2655.74 724 705 171.8
D 13 104 83850 484.1 724 705 171.8
D 2 120 30049 170.85 724 705 171.8

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