ASTROSAT CZTI

Data Quality Report

Orbit 03014

Creation date: 2024-06-27T14:23:29.116559
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_238T02_9000000420_03014cztM0_level2.evt modeM0/AS1G05_238T02_9000000420_03014cztM0_level2_quad_clean.evt
Size (bytes)477,270,72067,723,200
Size455.2 MB 64.6 MB
Events in quadrant A2,813,407440,027
Events in quadrant B2,314,914445,077
Events in quadrant C5,161,259400,383
Events in quadrant D3,828,427417,088

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0118163
B0104582
C0187912
D0150882

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01000
B01000
C01000
D01000

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0240
C0240
D0250

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4962641.289802%
B4962140.282144%
C496270114.127368%
D49622104.232164%

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 7089 4964 73 73 1.03% 1.47%
B 7089 4964 14 14 0.20% 0.28%
C 7089 4964 677 677 9.55% 13.64%
D 7089 4964 237 237 3.34% 4.77%

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 0 50 490485 4604.68 520 509 106.4
A 14 249 224835 2108.16 520 509 106.4
A 0 31 30084 277.94 520 509 106.4
B 14 167 79063 764.89 533 519 102.7
B 2 249 46740 450.12 533 519 102.7
B 0 219 37531 360.44 533 519 102.7
C 0 219 3058103 26769.9 484 485 114.2
C 1 192 129671 1131.04 484 485 114.2
C 6 80 51552 447.1 484 485 114.2
D 13 114 1603665 12715.21 508 491 126.1
D 2 136 128567 1015.8 508 491 126.1
D 7 80 38451 301.07 508 491 126.1

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