ASTROSAT CZTI

Data Quality Report

Orbit 30116

Creation date: 2024-06-27T20:11:06.309265
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/AS1A10_097T01_9000004334_30116cztM0_level2.evt modeM0/AS1A10_097T01_9000004334_30116cztM0_level2_quad_clean.evt
Size (bytes)996,883,200179,988,480
Size950.7 MB 171.7 MB
Events in quadrant A5,961,0341,173,406
Events in quadrant B9,722,4721,157,146
Events in quadrant C6,201,1311,115,552
Events in quadrant D7,439,1811,118,406

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02600
B02600
C02600
D02600

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0262353
B0387424
C0266033
D0302673

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A128361160.903708%
B128362151.674977%
C128362391.861951%
D128361270.989405%

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 14211 12837 2 2 0.01% 0.02%
B 14211 12837 12 12 0.08% 0.09%
C 14211 12838 0 0 0.00% 0.00%
D 14211 12838 61 61 0.43% 0.48%

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 8 192 35768 112.16 1527 1492 305.6
A 13 254 25395 78.22 1527 1492 305.6
A 0 128 23276 71.29 1527 1492 305.6
B 6 159 3706515 12886.75 1508 1469 287.5
B 0 190 44921 151.13 1508 1469 287.5
B 12 111 36383 121.44 1508 1469 287.5
C 14 238 274335 799.81 1454 1461 341.2
C 3 233 177212 515.14 1454 1461 341.2
C 14 254 58473 167.11 1454 1461 341.2
D 1 52 1167859 3076.56 1468 1433 379.1
D 8 195 452955 1190.93 1468 1433 379.1
D 12 227 73126 189.1 1468 1433 379.1

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