ASTROSAT CZTI

Data Quality Report

Orbit 08453

Creation date: 2024-06-27T15:32:55.133369
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/AS1A03_074T01_9000001192_08453cztM0_level2.evt modeM0/AS1A03_074T01_9000001192_08453cztM0_level2_quad_clean.evt
Size (bytes)686,888,640127,071,360
Size655.1 MB 121.2 MB
Events in quadrant A4,935,565780,908
Events in quadrant B5,431,927790,518
Events in quadrant C4,805,499796,459
Events in quadrant D4,934,422770,046

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02080
B02080
C02080
D02080

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0260
C0260
D0260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210743
B0224412
C0210642
D0215462

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A10258600.584909%
B102581301.267304%
C10258280.272958%
D10258390.380191%

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 12873 10260 0 0 0.00% 0.00%
B 12873 10259 18 18 0.14% 0.18%
C 12873 10260 0 0 0.00% 0.00%
D 12873 10260 6 6 0.05% 0.06%

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 0 226 12028 42.07 1279 1252 256.1
A 13 251 11612 40.45 1279 1252 256.1
A 12 194 11599 40.39 1279 1252 256.1
B 11 51 123198 502.09 1274 1247 242.9
B 0 214 98992 402.43 1274 1247 242.9
B 5 255 98161 399.01 1274 1247 242.9
C 13 61 9248 28.39 1231 1239 282.1
C 8 222 7363 21.71 1231 1239 282.1
C 3 202 3066 6.48 1231 1239 282.1
D 1 52 71583 238.36 1234 1204 295.3
D 2 152 65122 216.48 1234 1204 295.3
D 14 34 43063 141.77 1234 1204 295.3

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