ASTROSAT CZTI

Data Quality Report

Orbit 03040

Creation date: 2024-06-27T14:23:50.153223
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_237T02_9000000422_03040cztM0_level2.evt modeM0/AS1G05_237T02_9000000422_03040cztM0_level2_quad_clean.evt
Size (bytes)430,911,36085,936,320
Size410.9 MB 82.0 MB
Events in quadrant A2,407,090575,440
Events in quadrant B3,391,527571,394
Events in quadrant C3,319,225544,724
Events in quadrant D3,571,535538,864

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01100
B01100
C01100
D01100

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0240
C0240
D0250

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0108253
B0134912
C0135632
D0142512

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5303220.414860%
B5303510.961720%
C53033065.770319%
D53032835.336602%

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 7460 5304 13 13 0.17% 0.25%
B 7460 5304 30 30 0.40% 0.57%
C 7460 5304 196 196 2.63% 3.70%
D 7460 5304 238 238 3.19% 4.49%

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 37199 304.43 595 585 120.3
A 12 247 24991 202.93 595 585 120.3
A 14 249 23005 186.41 595 585 120.3
B 15 204 612451 5420.49 598 584 112.9
B 0 230 161550 1425.99 598 584 112.9
B 2 249 88985 783.14 598 584 112.9
C 1 192 785390 6126.35 556 558 128.1
C 0 219 194532 1514.15 556 558 128.1
C 6 80 137953 1072.5 556 558 128.1
D 7 80 769907 5816.42 562 549 132.3
D 12 217 177203 1335.52 562 549 132.3
D 10 213 144569 1088.8 562 549 132.3

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