ASTROSAT CZTI

Data Quality Report

Orbit 07010

Creation date: 2024-06-27T15:14:25.282116
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/AS1T01_151T01_9000000960_07010cztM0_level2.evt modeM0/AS1T01_151T01_9000000960_07010cztM0_level2_quad_clean.evt
Size (bytes)494,654,40091,474,560
Size471.7 MB 87.2 MB
Events in quadrant A3,227,940589,772
Events in quadrant B3,483,626590,218
Events in quadrant C3,139,943577,657
Events in quadrant D4,658,096529,315

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0144151
B0149421
C0142731
D0186091

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6930721.038961%
B6930901.298701%
C6930300.432900%
D69304746.839827%

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 7280 6931 0 0 0.00% 0.00%
B 7280 6931 2 2 0.03% 0.03%
C 7280 6931 0 0 0.00% 0.00%
D 7280 6931 417 417 5.73% 6.02%

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 4 2 18964 106.82 826 808 170.0
A 15 234 16779 93.97 826 808 170.0
A 13 14 8822 47.15 826 808 170.0
B 0 214 134893 837.02 827 808 160.2
B 4 239 60567 373.04 827 808 160.2
B 0 228 23892 144.1 827 808 160.2
C 1 16 13636 68.99 798 801 186.0
C 13 61 6276 29.43 798 801 186.0
C 8 128 3836 16.31 798 801 186.0
D 1 239 1340585 7001.85 773 747 191.4
D 8 195 179588 934.6 773 747 191.4
D 14 34 98135 508.94 773 747 191.4

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