ASTROSAT CZTI

Data Quality Report

Orbit 34010

Creation date: 2024-06-27T20:55:20.611606
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/AS1A11_106T03_9000004864_34010cztM0_level2.evt modeM0/AS1A11_106T03_9000004864_34010cztM0_level2_quad_clean.evt
Size (bytes)1,003,340,160165,778,560
Size956.9 MB 158.1 MB
Events in quadrant A4,911,2661,101,397
Events in quadrant B7,027,4831,085,700
Events in quadrant C7,223,9421,069,655
Events in quadrant D10,497,1821,017,880

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0280
B0280
C0280
D0290

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0219564
B0282593
C0282813
D0386923

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02200
B02200
C02200
D02200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A10772120.111400%
B107724514.186781%
C107724263.954697%
D107727436.897512%

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 13547 10774 0 0 0.00% 0.00%
B 13547 10774 305 305 2.25% 2.83%
C 13547 10774 348 348 2.57% 3.23%
D 13547 10774 696 696 5.14% 6.46%

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 12 16 41572 163.55 1239 1215 246.8
A 13 6 28633 111.11 1239 1215 246.8
A 10 83 28419 110.25 1239 1215 246.8
B 5 172 1507788 6518.5 1212 1179 231.1
B 0 189 278025 1197.8 1212 1179 231.1
B 0 219 144427 619.78 1212 1179 231.1
C 4 254 1135119 4156.11 1180 1186 272.8
C 15 214 466269 1704.63 1180 1186 272.8
C 0 10 462565 1691.05 1180 1186 272.8
D 8 195 2908866 9521.22 1164 1138 305.4
D 12 6 774313 2531.73 1164 1138 305.4
D 2 250 649148 2121.88 1164 1138 305.4

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