ASTROSAT CZTI

Data Quality Report

Orbit 17729

Creation date: 2024-06-27T17:40:06.353604
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/AS1T03_042T01_9000002630_17729cztM0_level2.evt modeM0/AS1T03_042T01_9000002630_17729cztM0_level2_quad_clean.evt
Size (bytes)506,309,76095,221,440
Size482.9 MB 90.8 MB
Events in quadrant A3,207,833619,085
Events in quadrant B3,195,917639,455
Events in quadrant C3,181,381614,516
Events in quadrant D5,323,258573,243

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0170
C0170
D0170

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137022
B0136592
C0135712
D0201122

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6272470.749362%
B6272530.845026%
C6272941.498724%
D627167610.779780%

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 7527 6273 11 11 0.15% 0.18%
B 7527 6273 1 1 0.01% 0.02%
C 7527 6272 0 0 0.00% 0.00%
D 7526 6271 531 531 7.06% 8.47%

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 15 174 117328 730.62 795 781 159.5
A 15 31 23393 141.75 795 781 159.5
A 15 191 12487 73.38 795 781 159.5
B 10 245 24170 154.84 802 782 151.0
B 12 111 17496 110.65 802 782 151.0
B 11 111 15121 94.93 802 782 151.0
C 14 238 123390 682.89 774 781 179.5
C 5 218 21499 115.39 774 781 179.5
C 3 233 16427 87.14 774 781 179.5
D 7 238 2422809 12396.1 725 710 195.4
D 1 52 81743 414.72 725 710 195.4
D 2 234 26585 132.43 725 710 195.4

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