ASTROSAT CZTI

Data Quality Report

Orbit 06342

Creation date: 2024-06-27T15:05:56.824501
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/AS1G06_132T01_9000000838_06342cztM0_level2.evt modeM0/AS1G06_132T01_9000000838_06342cztM0_level2_quad_clean.evt
Size (bytes)302,207,04034,084,800
Size288.2 MB 32.5 MB
Events in quadrant A1,678,267208,688
Events in quadrant B1,862,972211,475
Events in quadrant C1,676,790211,457
Events in quadrant D3,711,201167,702

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A069702
B075791
C072271
D0132651

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0660
B0660
C0660
D0660

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3270772.354740%
B32701414.311927%
C3270481.467890%
D327060718.562691%

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 4010 3271 1 1 0.02% 0.03%
B 4010 3271 50 50 1.25% 1.53%
C 4010 3271 16 16 0.40% 0.49%
D 4010 3271 491 491 12.24% 15.01%

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 15 236 42905 501.47 407 397 84.8
A 13 251 20850 241.28 407 397 84.8
A 15 234 20299 234.78 407 397 84.8
B 3 64 164763 2046.64 407 397 80.3
B 0 219 73917 915.45 407 397 80.3
B 0 214 26262 322.06 407 397 80.3
C 4 254 141879 1537.6 390 392 92.0
C 14 234 6856 70.25 390 392 92.0
C 13 61 3086 29.28 390 392 92.0
D 12 220 1041759 11384.46 367 355 91.5
D 12 221 587405 6417.54 367 355 91.5
D 13 46 317214 3463.85 367 355 91.5

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