ASTROSAT CZTI

Data Quality Report

Orbit 48054

Creation date: 2024-08-17T02:15:07.861140
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/AS1A13_037T05_9000006392_48054cztM0_level2.fits modeM0/AS1A13_037T05_9000006392_48054cztM0_level2_quad_clean.evt
Size (bytes)520,240,320104,140,800
Size496.1 MB 99.3 MB
Events in quadrant A7,105,698682,348
Events in quadrant B3,325,273725,584
Events in quadrant C2,877,371690,925
Events in quadrant D5,464,606617,215

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0254481
B0140431
C0130641
D0205001

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62603565.686901%
B6260841.341853%
C6261170.271522%
D62611872.986743%

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 7465 6261 150 150 2.01% 2.40%
B 7465 6261 36 36 0.48% 0.57%
C 7466 6262 10 10 0.13% 0.16%
D 7466 6262 186 186 2.49% 2.97%

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 10 83 4133235 28157.4 702 688 146.8
A 14 248 218280 1482.58 702 688 146.8
A 7 3 24785 164.19 702 688 146.8
B 0 200 118190 831.62 710 690 141.3
B 5 32 97130 682.57 710 690 141.3
B 0 198 92976 653.16 710 690 141.3
C 12 2 98324 595.59 691 697 163.9
C 14 254 32091 191.53 691 697 163.9
C 15 208 26747 158.92 691 697 163.9
D 2 165 1961417 11489.54 677 656 170.7
D 2 249 234219 1368.62 677 656 170.7
D 7 67 229443 1340.63 677 656 170.7

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