ASTROSAT CZTI

Data Quality Report

Orbit 27305

Creation date: 2024-06-27T19:38:39.732642
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/AS1T03_243T01_9000003918_27305cztM0_level2.evt modeM0/AS1T03_243T01_9000003918_27305cztM0_level2_quad_clean.evt
Size (bytes)108,705,60025,346,880
Size103.7 MB 24.2 MB
Events in quadrant A687,252171,848
Events in quadrant B780,262174,536
Events in quadrant C662,410166,246
Events in quadrant D1,073,480159,403

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A028610
B031520
C027840
D040770

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1269221.733649%
B1270564.409449%
C1270272.125984%
D1270876.850394%

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 1539 1270 3 3 0.19% 0.24%
B 1540 1271 12 12 0.78% 0.94%
C 1540 1271 0 0 0.00% 0.00%
D 1540 1271 54 54 3.51% 4.25%

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 13 248 11537 305.17 172 168 37.3
A 8 192 8144 214.09 172 168 37.3
A 13 254 2313 57.58 172 168 37.3
B 5 172 83404 2335.28 171 166 35.6
B 0 190 14637 405.99 171 166 35.6
B 0 229 5519 150.18 171 166 35.6
C 14 238 25152 621.57 163 163 40.2
C 13 61 1157 24.72 163 163 40.2
C 8 208 726 14.0 163 163 40.2
D 1 52 226650 5279.26 163 158 42.9
D 2 250 82515 1919.64 163 158 42.9
D 12 233 61489 1429.55 163 158 42.9

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