ASTROSAT CZTI

Data Quality Report

Orbit 06989

Creation date: 2024-06-27T15:14:08.927917
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_06989cztM0_level2.evt modeM0/AS1T01_151T01_9000000960_06989cztM0_level2_quad_clean.evt
Size (bytes)437,425,92069,655,680
Size417.2 MB 66.4 MB
Events in quadrant A3,120,759421,524
Events in quadrant B3,332,165424,642
Events in quadrant C3,028,643415,441
Events in quadrant D3,333,587403,762

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132473
B0138302
C0131482
D0137302

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6362671.053128%
B6362761.194593%
C6362370.581578%
D6362460.723043%

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 7592 6363 2 2 0.03% 0.03%
B 7592 6363 4 4 0.05% 0.06%
C 7592 6363 0 0 0.00% 0.00%
D 7592 6363 7 7 0.09% 0.11%

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 9823 55.04 805 788 164.2
A 0 226 7655 41.83 805 788 164.2
A 12 194 7276 39.52 805 788 164.2
B 0 228 87902 569.96 809 789 152.8
B 0 219 34810 222.59 809 789 152.8
B 4 173 23553 148.94 809 789 152.8
C 13 61 6188 30.44 774 778 177.8
C 5 252 4193 19.21 774 778 177.8
C 12 4 4107 18.73 774 778 177.8
D 8 195 267463 1422.48 775 753 187.5
D 9 68 44760 234.71 775 753 187.5
D 13 169 37377 195.33 775 753 187.5

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