ASTROSAT CZTI

Data Quality Report

Orbit 44951

Creation date: 2024-06-27T23:08:19.475018
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_017T02_9000006032_44951cztM0_level2.fits modeM0/AS1A13_017T02_9000006032_44951cztM0_level2_quad_clean.evt
Size (bytes)480,049,92097,819,200
Size457.8 MB 93.3 MB
Events in quadrant A4,680,596669,309
Events in quadrant B3,643,036680,106
Events in quadrant C2,731,394667,204
Events in quadrant D6,276,414550,108

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01140
B01140
C01140
D01140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0177721
B0143721
C0117421
D0226231

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A56521332.353149%
B56522484.387827%
C5653591.043694%
D565380114.169468%

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 6833 5654 7 7 0.10% 0.12%
B 6833 5654 123 123 1.80% 2.18%
C 6834 5655 6 6 0.09% 0.11%
D 6834 5655 578 578 8.46% 10.22%

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 1977597 14087.76 682 668 140.3
A 2 79 37822 264.76 682 668 140.3
A 13 248 13817 93.7 682 668 140.3
B 4 171 553946 4185.59 672 652 132.2
B 5 172 147229 1108.83 672 652 132.2
B 3 112 62467 467.62 672 652 132.2
C 0 207 22214 136.16 674 681 158.1
C 3 233 21627 132.45 674 681 158.1
C 15 208 19494 118.96 674 681 158.1
D 12 233 803018 4941.71 645 628 162.4
D 1 52 604409 3718.53 645 628 162.4
D 13 249 508083 3125.28 645 628 162.4

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