ASTROSAT CZTI

Data Quality Report

Orbit 08114

Creation date: 2024-06-27T15:28:11.536913
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/AS1G06_033T01_9000001116_08114cztM0_level2.evt modeM0/AS1G06_033T01_9000001116_08114cztM0_level2_quad_clean.evt
Size (bytes)312,765,12067,435,200
Size298.3 MB 64.3 MB
Events in quadrant A2,214,719429,948
Events in quadrant B2,342,917432,932
Events in quadrant C2,148,489433,007
Events in quadrant D2,440,689412,333

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B082
C083
D081

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A013850
B013842
C013741
D013636

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136393964
B0141314200
C0135963972
D0153824865

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4772511.068734%
B4758621.303069%
C4758300.630517%
D4700621.319149%

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 7523 5596 0 0 0.00% 0.00%
B 7523 5572 4 4 0.05% 0.07%
C 7523 5575 0 0 0.00% 0.00%
D 7523 5504 14 14 0.19% 0.25%

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 8 15 26915 225.19 566 555 117.1
A 2 79 8178 65.12 566 555 117.1
A 0 226 5274 40.31 566 555 117.1
B 0 214 60322 543.05 566 554 110.1
B 10 16 41670 373.58 566 554 110.1
B 11 51 20523 181.44 566 554 110.1
C 13 61 4315 29.02 550 553 129.6
C 1 16 2949 18.48 550 553 129.6
C 8 222 1378 6.36 550 553 129.6
D 2 152 168606 1253.98 542 526 134.0
D 1 52 123648 918.56 542 526 134.0
D 5 233 51274 378.61 542 526 134.0

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