ASTROSAT CZTI

Data Quality Report

Orbit 07091

Creation date: 2024-06-27T15:15:27.525966
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/AS1A02_090T01_9000000970_07091cztM0_level2.evt modeM0/AS1A02_090T01_9000000970_07091cztM0_level2_quad_clean.evt
Size (bytes)446,014,08075,890,880
Size425.4 MB 72.4 MB
Events in quadrant A3,238,034464,258
Events in quadrant B3,450,992476,022
Events in quadrant C3,191,267463,027
Events in quadrant D3,179,519435,177

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136533
B0143092
C0136112
D0139222

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0230

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6595270.409401%
B6595420.636846%
C6595120.181956%
D6595350.530705%

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 7865 6596 0 0 0.00% 0.00%
B 7865 6596 6 6 0.08% 0.09%
C 7865 6596 0 0 0.00% 0.00%
D 7865 6596 26 26 0.33% 0.39%

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 13 14 14899 83.45 835 820 168.7
A 0 226 7936 42.18 835 820 168.7
A 12 194 7618 40.29 835 820 168.7
B 0 219 75057 466.42 848 832 159.1
B 0 214 71935 446.81 848 832 159.1
B 0 199 16125 96.1 848 832 159.1
C 9 68 7323 34.64 813 819 187.8
C 14 67 7280 34.41 813 819 187.8
C 13 61 6360 29.51 813 819 187.8
D 12 233 93294 469.19 803 780 197.2
D 13 105 37883 188.17 803 780 197.2
D 2 14 22721 111.28 803 780 197.2

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