ASTROSAT CZTI

Data Quality Report

Orbit 48473

Creation date: 2024-09-14T08:04:54.730116
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_029T01_9000006426_48473cztM0_level2.fits modeM0/AS1A13_029T01_9000006426_48473cztM0_level2_quad_clean.evt
Size (bytes)443,255,040107,576,640
Size422.7 MB 102.6 MB
Events in quadrant A6,913,131698,718
Events in quadrant B3,053,293745,302
Events in quadrant C2,816,474709,500
Events in quadrant D3,115,429646,201

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0251012
B0139022
C0133682
D0143242

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0160
C0160
D0160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65603184.847561%
B6560500.762195%
C656070.106707%
D6559751.143467%

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 7565 6561 168 168 2.22% 2.56%
B 7565 6561 16 16 0.21% 0.24%
C 7565 6561 0 0 0.00% 0.00%
D 7564 6560 61 61 0.81% 0.93%

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 10 83 4011195 26837.91 716 701 149.4
A 9 143 118847 790.62 716 701 149.4
A 4 0 15310 97.76 716 701 149.4
B 12 16 71205 489.12 724 701 144.1
B 8 234 58636 401.93 724 701 144.1
B 0 186 29205 197.75 724 701 144.1
C 14 67 7652 40.6 718 721 170.7
C 3 233 6180 31.97 718 721 170.7
C 12 2 4830 24.07 718 721 170.7
D 2 120 141487 787.11 708 687 178.9
D 12 233 77977 432.07 708 687 178.9
D 2 165 74294 411.48 708 687 178.9

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