ASTROSAT CZTI

Data Quality Report

Orbit 04457

Creation date: 2024-06-27T14:42:17.992373
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_253T01_9000000560_04457cztM0_level2.evt modeM0/AS1G05_253T01_9000000560_04457cztM0_level2_quad_clean.evt
Size (bytes)335,903,04048,634,560
Size320.3 MB 46.4 MB
Events in quadrant A2,278,402284,885
Events in quadrant B2,441,227285,967
Events in quadrant C2,302,804289,693
Events in quadrant D2,821,662273,191

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01000
B01011
C01011
D01013

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010059167
B010412176
C010151188
D011827189

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4822400.829531%
B4821370.767476%
C4813390.810305%
D48171432.968653%

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 6128 4837 5 5 0.08% 0.10%
B 6125 4837 0 0 0.00% 0.00%
C 6135 4834 2 2 0.03% 0.04%
D 6130 4835 107 107 1.75% 2.21%

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 16 23898 197.14 581 568 118.3
A 12 194 6010 45.98 581 568 118.3
A 0 226 5887 44.95 581 568 118.3
B 15 204 125080 1108.09 589 575 112.4
B 0 172 14754 126.19 589 575 112.4
B 12 111 9468 79.14 589 575 112.4
C 14 48 33079 245.54 571 574 132.4
C 1 3 16516 120.43 571 574 132.4
C 14 191 11958 86.0 571 574 132.4
D 2 136 231756 1698.36 562 545 136.1
D 7 39 147967 1082.89 562 545 136.1
D 12 227 98724 721.17 562 545 136.1

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