ASTROSAT CZTI

Data Quality Report

Orbit 42614

Creation date: 2024-06-27T22:42:12.467598
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/AS1A12_061T07_9000005818_42614cztM0_level2.fits modeM0/AS1A12_061T07_9000005818_42614cztM0_level2_quad_clean.evt
Size (bytes)113,935,68023,624,640
Size108.7 MB 22.5 MB
Events in quadrant A847,231159,152
Events in quadrant B757,143161,074
Events in quadrant C719,696154,812
Events in quadrant D1,775,964131,275

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A034351
B032081
C030701
D063331

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0300
B0300
C0300
D0300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0150

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A147570.474576%
B1476140.948509%
C147620.135501%
D147616210.975610%

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 2968 1476 3 3 0.10% 0.20%
B 2969 1477 6 6 0.20% 0.41%
C 2969 1477 1 1 0.03% 0.07%
D 2969 1477 141 141 4.75% 9.55%

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 210992 5903.61 162 159 35.7
A 13 6 3073 81.6 162 159 35.7
A 10 67 2285 59.53 162 159 35.7
B 0 245 60023 1747.06 162 157 34.3
B 4 141 23350 676.84 162 157 34.3
B 0 168 22254 644.85 162 157 34.3
C 15 214 64043 1657.3 157 158 38.5
C 14 254 25813 665.54 157 158 38.5
C 3 233 12302 315.04 157 158 38.5
D 1 52 705389 18527.82 147 142 38.1
D 2 16 445858 11709.58 147 142 38.1
D 12 233 35491 928.67 147 142 38.1

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