ASTROSAT CZTI

Data Quality Report

Orbit 05052

Creation date: 2024-06-27T14:50:41.409122
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/AS1G05_218T04_9000000640_05052cztM0_level2.evt modeM0/AS1G05_218T04_9000000640_05052cztM0_level2_quad_clean.evt
Size (bytes)502,727,04064,586,880
Size479.4 MB 61.6 MB
Events in quadrant A3,348,553382,688
Events in quadrant B3,316,323385,867
Events in quadrant C4,191,839370,637
Events in quadrant D3,924,905360,505

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140333
B0138032
C0169062
D0159052

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65361642.509180%
B65361251.912485%
C65361161.774786%
D65362463.763770%

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 7771 6537 34 34 0.44% 0.52%
B 7771 6537 13 13 0.17% 0.20%
C 7771 6537 11 11 0.14% 0.17%
D 7771 6537 100 100 1.29% 1.53%

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 0 50 108523 649.74 821 804 165.8
A 15 174 40435 239.04 821 804 165.8
A 15 234 24878 145.21 821 804 165.8
B 15 54 66912 418.78 820 801 157.9
B 15 204 33590 207.7 820 801 157.9
B 0 219 25277 155.04 820 801 157.9
C 1 16 1103184 6090.24 782 786 181.0
C 14 67 36556 197.61 782 786 181.0
C 13 61 6303 30.48 782 786 181.0
D 2 136 302921 1550.41 789 763 194.9
D 13 235 248803 1272.73 789 763 194.9
D 10 15 102951 524.34 789 763 194.9

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