ASTROSAT CZTI

Data Quality Report

Orbit 35029

Creation date: 2024-06-27T21:08:21.756956
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/AS1T05_010T01_9000005016_35029cztM0_level2.evt modeM0/AS1T05_010T01_9000005016_35029cztM0_level2_quad_clean.evt
Size (bytes)453,386,88066,075,840
Size432.4 MB 63.0 MB
Events in quadrant A2,819,850417,407
Events in quadrant B3,065,039420,056
Events in quadrant C3,014,690409,344
Events in quadrant D4,477,670388,617

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0114553
B0122402
C0119722
D0169492

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0280
B0280
C0280
D0290

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5215100.191755%
B5215470.901246%
C5215480.920422%
D52152314.429530%

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 7217 5216 0 0 0.00% 0.00%
B 7217 5216 25 25 0.35% 0.48%
C 7217 5216 37 37 0.51% 0.71%
D 7217 5216 192 192 2.66% 3.68%

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 10 83 80459 564.8 705 695 141.2
A 13 6 13213 88.64 705 695 141.2
A 13 254 8281 53.72 705 695 141.2
B 4 232 80654 614.39 698 687 130.2
B 5 200 69721 530.39 698 687 130.2
B 5 172 64647 491.41 698 687 130.2
C 15 214 219620 1430.68 669 678 153.0
C 0 10 129491 841.73 669 678 153.0
C 14 67 38051 244.21 669 678 153.0
D 8 195 1056267 6525.47 662 647 161.8
D 10 118 505553 3121.15 662 647 161.8
D 1 47 87117 534.53 662 647 161.8

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