ASTROSAT CZTI

Data Quality Report

Orbit 29292

Creation date: 2024-06-27T20:02:26.731131
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/AS1A10_050T01_9000004212_29292cztM0_level2.evt modeM0/AS1A10_050T01_9000004212_29292cztM0_level2_quad_clean.evt
Size (bytes)1,571,077,440165,435,840
Size1.5 GB 157.8 MB
Events in quadrant A5,592,4891,113,503
Events in quadrant B5,887,3701,130,268
Events in quadrant C19,747,795945,661
Events in quadrant D15,542,101984,899

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0246542
B0254562
C0670882
D0545742

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02460
B02460
C02460
D02460

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A12064330.273541%
B120641070.886936%
C12065542044.923332%
D12065271422.494820%

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 13479 12066 3 3 0.02% 0.02%
B 13479 12066 19 19 0.14% 0.16%
C 13480 12066 3273 3273 24.28% 27.13%
D 13480 12066 2464 2464 18.28% 20.42%

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 13 254 25431 81.92 1445 1413 293.2
A 3 137 13898 42.58 1445 1413 293.2
A 0 226 12073 36.36 1445 1413 293.2
B 0 190 91650 330.39 1437 1403 273.2
B 4 171 54221 193.36 1437 1403 273.2
B 12 111 33456 117.34 1437 1403 273.2
C 3 233 14575770 51807.67 1198 1208 281.3
C 14 238 292523 1035.53 1198 1208 281.3
C 14 254 164680 581.09 1198 1208 281.3
D 1 52 4810261 15881.56 1262 1228 302.8
D 12 233 2565911 8469.72 1262 1228 302.8
D 8 195 1966937 6491.64 1262 1228 302.8

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