ASTROSAT CZTI

Data Quality Report

Orbit 00603

Creation date: 2024-06-27T14:00:26.122575
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/AS1P01_126T01_9000000084_00603cztM0_level2.evt modeM0/AS1P01_126T01_9000000084_00603cztM0_level2_quad_clean.evt
Size (bytes)792,054,72069,264,000
Size755.4 MB 66.1 MB
Events in quadrant A6,075,301438,657
Events in quadrant B6,299,767441,899
Events in quadrant C5,611,932431,545
Events in quadrant D5,653,299419,973

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0280
B0280
C0280
D0290

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0217413
B0224372
C0203952
D0205342

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A521380.153462%
B5213671.285248%
C521340.076731%
D5213360.690581%

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 7367 5214 117 117 1.59% 2.24%
B 7367 5214 169 169 2.29% 3.24%
C 7367 5214 38 38 0.52% 0.73%
D 7367 5214 124 124 1.68% 2.38%

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 13 160 75489 217.34 1508 1484 340.5
A 0 149 71178 204.68 1508 1484 340.5
A 0 69 44663 126.81 1508 1484 340.5
B 5 191 236224 654.23 1534 1547 358.7
B 7 221 69812 190.31 1534 1547 358.7
B 4 250 60249 163.65 1534 1547 358.7
C 15 241 81951 205.32 1400 1452 392.1
C 1 1 20700 49.09 1400 1452 392.1
C 9 83 7448 15.29 1400 1452 392.1
D 12 237 219872 536.63 1305 1354 407.2
D 1 4 163718 398.73 1305 1354 407.2
D 13 221 69209 166.64 1305 1354 407.2

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