ASTROSAT CZTI

Data Quality Report

Orbit 07060

Creation date: 2024-06-27T15:15:03.712294
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/AS1A02_155T01_9000000966_07060cztM0_level2.evt modeM0/AS1A02_155T01_9000000966_07060cztM0_level2_quad_clean.evt
Size (bytes)1,392,177,600269,665,920
Size1.3 GB 257.2 MB
Events in quadrant A9,819,7671,683,265
Events in quadrant B10,228,8291,711,347
Events in quadrant C9,707,0401,680,406
Events in quadrant D10,956,2201,616,598

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0442574
B0450813
C0441943
D0473523

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0190

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A04380
B04380
C04380
D04380

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A21430930.433971%
B214301660.774615%
C214301000.466636%
D214302201.026598%

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 23470 21433 1 1 0.00% 0.00%
B 23470 21433 45 45 0.19% 0.21%
C 23470 21433 47 47 0.20% 0.22%
D 23470 21433 155 155 0.66% 0.72%

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 15 234 282912 562.24 2448 2394 498.9
A 8 15 46643 88.69 2448 2394 498.9
A 13 14 32743 60.83 2448 2394 498.9
B 0 214 225184 474.23 2467 2405 469.8
B 0 228 149980 314.14 2467 2405 469.8
B 5 174 102384 212.82 2467 2405 469.8
C 9 68 333447 601.9 2386 2398 550.0
C 1 3 38851 66.28 2386 2398 550.0
C 13 61 18765 29.76 2386 2398 550.0
D 8 195 925098 1598.92 2374 2302 577.1
D 14 34 520812 898.42 2374 2302 577.1
D 12 233 174405 298.2 2374 2302 577.1

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