ASTROSAT CZTI

Data Quality Report

Orbit 14632

Creation date: 2024-06-27T16:57:44.831870
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/AS1A04_043T01_9000002156_14632cztM0_level2.evt modeM0/AS1A04_043T01_9000002156_14632cztM0_level2_quad_clean.evt
Size (bytes)272,655,36052,260,480
Size260.0 MB 49.8 MB
Events in quadrant A1,864,716342,409
Events in quadrant B1,734,517345,271
Events in quadrant C2,639,463338,304
Events in quadrant D1,810,488339,172

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A076102
B073191
C0101451
D075591

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0640
B0640
C0640
D0640

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A30451384.532020%
B3045822.692939%
C3045912.988506%
D3045762.495895%

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 4326 3046 58 58 1.34% 1.90%
B 4326 3046 2 2 0.05% 0.07%
C 4326 3046 3 3 0.07% 0.10%
D 4326 3046 10 10 0.23% 0.33%

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 23 176543 2134.96 407 399 82.5
A 1 162 38017 455.95 407 399 82.5
A 8 15 31157 372.8 407 399 82.5
B 0 189 59843 762.66 408 398 77.9
B 0 219 20829 262.12 408 398 77.9
B 4 173 13661 170.16 408 398 77.9
C 3 233 1073362 11685.22 398 401 91.8
C 0 207 8238 85.35 398 401 91.8
C 3 234 4750 47.36 398 401 91.8
D 12 110 140770 1469.31 400 390 95.5
D 10 199 58196 605.04 400 390 95.5
D 2 152 28539 294.63 400 390 95.5

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