ASTROSAT CZTI

Data Quality Report

Orbit 39006

Creation date: 2024-06-27T21:59:11.687380
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_9000005422_39006cztM0_level2.fits modeM0/AS1A12_061T07_9000005422_39006cztM0_level2_quad_clean.evt
Size (bytes)301,567,68080,867,520
Size287.6 MB 77.1 MB
Events in quadrant A3,610,688531,168
Events in quadrant B2,347,108553,542
Events in quadrant C2,314,057530,471
Events in quadrant D2,510,788491,019

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01000
B01000
C01000
D01000

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139411
B0102451
C097851
D0107891

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A48781883.854039%
B4878400.820008%
C487810.020500%
D4878280.574006%

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 6191 4879 237 237 3.83% 4.86%
B 6191 4879 11 11 0.18% 0.23%
C 6191 4879 0 0 0.00% 0.00%
D 6191 4879 31 31 0.50% 0.64%

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 15 222 1058107 9394.25 549 538 112.6
A 10 83 308217 2733.07 549 538 112.6
A 13 248 99197 876.38 549 538 112.6
B 5 172 149559 1393.96 549 534 106.9
B 0 230 22427 204.78 549 534 106.9
B 12 111 13690 123.06 549 534 106.9
C 15 214 198031 1544.7 539 543 127.8
C 1 128 10007 74.03 539 543 127.8
C 10 20 4046 27.4 539 543 127.8
D 13 171 184931 1401.83 538 523 131.5
D 12 227 137937 1044.59 538 523 131.5
D 12 235 65464 493.67 538 523 131.5

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