ASTROSAT CZTI

Data Quality Report

Orbit 28988

Creation date: 2024-06-27T19:58:51.413481
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/AS1A10_073T06_9000004156_28988cztM0_level2.evt modeM0/AS1A10_073T06_9000004156_28988cztM0_level2_quad_clean.evt
Size (bytes)443,911,68099,109,440
Size423.3 MB 94.5 MB
Events in quadrant A3,022,781660,924
Events in quadrant B3,376,047667,820
Events in quadrant C2,928,087631,564
Events in quadrant D3,699,026611,669

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131341
B0138861
C0126571
D0151281

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6156520.844704%
B61571031.672893%
C6157801.299334%
D6157841.364301%

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 7106 6157 0 0 0.00% 0.00%
B 7107 6158 41 41 0.58% 0.67%
C 7107 6158 0 0 0.00% 0.00%
D 7107 6158 31 31 0.44% 0.50%

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 0 13 97559 634.95 753 737 152.5
A 12 210 12069 74.31 753 737 152.5
A 13 254 11001 67.31 753 737 152.5
B 10 245 423387 2964.64 742 722 142.6
B 12 111 17495 117.65 742 722 142.6
B 15 32 16799 112.77 742 722 142.6
C 14 238 114839 678.24 717 722 168.3
C 2 114 14455 81.62 717 722 168.3
C 13 61 4868 24.64 717 722 168.3
D 8 195 532128 3085.34 725 707 172.2
D 1 52 195419 1130.46 725 707 172.2
D 5 233 96624 556.88 725 707 172.2

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