ASTROSAT CZTI

Data Quality Report

Orbit 47343

Creation date: 2024-06-30T03:26:39.294732
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_093T09_9000006320_47343cztM0_level2.fits modeM0/AS1A13_093T09_9000006320_47343cztM0_level2_quad_clean.evt
Size (bytes)690,989,76099,273,600
Size659.0 MB 94.7 MB
Events in quadrant A7,027,150697,027
Events in quadrant B3,510,097748,965
Events in quadrant C3,161,984720,699
Events in quadrant D11,379,101388,841

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0253222
B0147262
C0138402
D0382375

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0190
C0190
D0190

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64583285.078972%
B6458931.440074%
C6458320.495509%
D6457293245.408084%

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 7613 6460 174 174 2.29% 2.69%
B 7613 6459 19 19 0.25% 0.29%
C 7613 6460 2 2 0.03% 0.03%
D 7611 6456 2602 2602 34.19% 40.30%

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 10 83 3817118 25727.58 717 703 148.3
A 9 191 255618 1718.46 717 703 148.3
A 15 235 116597 781.28 717 703 148.3
B 14 167 236849 1648.51 729 708 143.2
B 0 190 87819 608.12 729 708 143.2
B 5 171 58430 402.96 729 708 143.2
C 0 207 270440 1583.19 723 726 170.4
C 3 233 45498 262.81 723 726 170.4
C 1 3 16069 90.06 723 726 170.4
D 12 2 4413691 32358.76 537 520 136.4
D 6 112 4306864 31575.47 537 520 136.4
D 2 165 295518 2163.02 537 520 136.4

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