ASTROSAT CZTI

Data Quality Report

Orbit 42334

Creation date: 2024-06-27T22:39:07.250496
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/AS1C07_001T10_9000005796_42334cztM0_level2.fits modeM0/AS1C07_001T10_9000005796_42334cztM0_level2_quad_clean.evt
Size (bytes)356,382,72092,784,960
Size339.9 MB 88.5 MB
Events in quadrant A3,010,853619,842
Events in quadrant B2,772,177624,646
Events in quadrant C2,635,522612,676
Events in quadrant D4,323,060547,640

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0125942
B0124472
C0117982
D0170452

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0250
C0250
D0250

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5784150.259336%
B5784570.985477%
C578460.103734%
D57843586.189488%

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 7156 5785 6 6 0.08% 0.10%
B 7156 5785 31 31 0.43% 0.54%
C 7156 5785 3 3 0.04% 0.05%
D 7156 5785 322 322 4.50% 5.57%

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 612135 4847.34 609 595 126.2
A 7 3 21990 169.59 609 595 126.2
A 13 254 9949 74.14 609 595 126.2
B 5 172 189862 1636.08 603 587 115.7
B 3 112 72571 622.23 603 587 115.7
B 0 245 43304 369.24 603 587 115.7
C 15 214 241060 1720.77 600 603 139.7
C 5 250 26026 181.93 600 603 139.7
C 12 249 12030 81.77 600 603 139.7
D 5 222 498843 3496.75 585 571 142.5
D 12 6 438506 3073.32 585 571 142.5
D 12 218 388777 2724.33 585 571 142.5

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