ASTROSAT CZTI

Data Quality Report

Orbit 10549

Creation date: 2024-06-27T16:00:35.558871
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_107T01_9000001530_10549cztM0_level2.evt modeM0/AS1A03_107T01_9000001530_10549cztM0_level2_quad_clean.evt
Size (bytes)125,994,24021,960,000
Size120.2 MB 20.9 MB
Events in quadrant A860,861143,594
Events in quadrant B875,962124,613
Events in quadrant C877,955156,616
Events in quadrant D1,078,014110,876

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0224192
B0226187
C0221181
D0217175

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02213
B02213
C02315
D02215

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02193618199
B02872925153
C02227318432
D02850524279

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A180660.332226%
B1571100.636537%
C190810.052411%
D169850.294464%

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 6651 2507 0 0 0.00% 0.00%
B 6344 2236 0 0 0.00% 0.00%
C 6620 2579 0 0 0.00% 0.00%
D 6652 2316 1 1 0.02% 0.04%

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 15 174 17708 382.35 216 211 45.8
A 8 5 3110 63.35 216 211 45.8
A 1 162 2819 56.99 216 211 45.8
B 4 239 108190 2817.32 192 187 38.3
B 4 81 5737 144.78 192 187 38.3
B 0 214 4268 106.46 192 187 38.3
C 4 175 2360 40.26 223 225 53.0
C 14 234 1701 27.84 223 225 53.0
C 13 61 1632 26.53 223 225 53.0
D 8 195 133693 2760.69 190 185 48.4
D 1 52 110626 2283.7 190 185 48.4
D 2 16 60032 1237.52 190 185 48.4

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