UC Observatories

Parent: UCLA

eScholarship stats: History by Item for June through September, 2026

Item	Title	Total requests	2026-09	2026-08	2026-07	2026-06
9j80t4m1	The 16th Data Release of the Sloan Digital Sky Surveys: First Release from the APOGEE-2 Southern Survey and Full Release of eBOSS Spectra	793	131	154	246	262
2qw2m22g	The Seventeenth Data Release of the Sloan Digital Sky Surveys: Complete Release of MaNGA, MaStar, and APOGEE-2 Data	427	112	89	117	109
4058w3z1	Final Targeting Strategy for the Sloan Digital Sky Survey IV Apache Point Observatory Galactic Evolution Experiment 2 North Survey	340	64	71	100	105
5cf394wh	Adaptive Optics for Extremely Large Telescopes 4 - Program Booklet	325	47	73	115	90
5qs0n1bc	Innovations and advances in instrumentation at the W. M. Keck Observatory, vol. III	301	67	74	71	89
015808kc	Measuring Segment Piston with a Dispersed Fringe Sensor on the Giant Magellan Telescope	288	98	115	35	40
2vj6w3gm	The use of CPU, GPU and FPGA in real-time control of adaptive optics systems	274	86	50	57	81
4d77d3hk	The HETDEX Instrumentation: Hobby–Eberly Telescope Wide-field Upgrade and VIRUS	266	79	51	70	66
9fp0m8s1	The Fifteenth Data Release of the Sloan Digital Sky Surveys: First Release of MaNGA-derived Quantities, Data Visualization Tools, and Stellar Library	257	96	36	61	64
77f6c5hq	SDSS-IV MaNGA: How the Stellar Populations of Passive Central Galaxies Depend on Stellar and Halo Mass	246	33	57	75	81
93x3m220	Non common path aberration correction with non linear WFSs	241	72	43	40	86
2mn1w74z	Point spread function determination for Keck adaptive optics: overview	223	71	88	23	41
6809n74d	Durham AO Real-time Controller (DARC) running on Graphics Processing Units (GPUs)	222	79	67	39	37
1k41x51n	INO Pyramidal Wavefront Sensor Demonstrator: first closed-loop on-sky operation at Mont-Mégantic Telescope	221	59	65	34	63
7zs2q9fv	Inferring the intergalactic medium neutral fraction at z ∼ 6–8 with low-luminosity Lyman break galaxies	217	47	56	48	66
56v9924z	Experimental implementation of a Pyramid WFS: Towards the	205	69	50	46	40
11f44236	THE DEEP2 GALAXY REDSHIFT SURVEY: DESIGN, OBSERVATIONS, DATA REDUCTION, AND REDSHIFTS**Based on observations taken at the W. M. Keck Observatory, which is operated jointly by the University of California and the California Institute of Technology, and on observations made with the NASA/ESO Hubble Space Telescope, obtained from the data archives at the Space Telescope Science Institute, which is operated by the Association of Universities for Research in Astronomy, Inc., under NASA contract NAS5-26555, and from the Canadian Astronomy Data Centre.	202	50	49	44	59
910646qf	Low Wind Effect, the main limitation of the SPHERE instrument	199	83	54	23	39
7h46n1q2	Lick Observatory Supernova Search follow-up program: photometry data release of 93 Type Ia supernovae	198	51	29	50	68
9xx3208w	On-sky results of Raven, a MOAO science demonstrator at Subaru Telescope	190	64	41	25	60
7t52h1r1	Miniaturized Shack-Hartmann Wavefront-Sensors for ELTs	187	41	47	38	61
217686nz	Design and Development Status of MKID Integral Field Spectrographs for High Contrast Imaging	186	60	43	35	48
38s3v07s	The Hobby–Eberly Telescope Dark Energy Experiment (HETDEX) Survey Design, Reductions, and Detections* * Based on observations obtained with the Hobby–Eberly Telescope, which is a joint project of the University of Texas at Austin, the Pennsylvania State University, Ludwig-Maximilians-Universität München, and Georg-August-Universität Göttingen.	186	58	20	59	49
2zm625jk	Selex infrared sensors for astronomy – present and future	185	79	52	23	31
0v44n629	Sloan Digital Sky Survey IV: Mapping the Milky Way, Nearby Galaxies, and the Distant Universe	183	46	83	13	41
23w5v4vv	New Cophasing and AO strategies for an extremely large telescope dedicated to extremely high contrast: The Colossus Project	183	44	61	25	53
81f1f8pt	Prototyping the GMT phasing camera with the Magellan AO system	182	58	36	39	49
5n84b2z0	Multi-conjugate Adaptive Optics at Big Bear Solar Observatory	175	37	43	34	61
4gr3p2pf	Adaptive Optics Program at TMT	168	40	28	40	60
3cq132qm	Pyramid versus Shack-Hartmann: Trade Study Results for the NFIRAOS NGS WFS	165	46	49	25	45
80j280rv	Filtering the interaction matrix in an adaptive optics system	162	47	43	21	51
0479k8m1	Observations of the dynamic turbulence above La Palma using Stereo-SCIDAR	160	52	52	22	34
0gt3876k	SPHERE extreme AO system On-sky operation, final performance and future improvements	157	27	39	35	56
5vv5p369	Self-Coherent Camera as a focal plane phasing sensor - Overview and early comparison with the Zernike Phase Contrast Sensor	157	40	50	29	38
8x09340m	Dissecting Star-forming regions with the GeMS MCAO instrument: lessons learned for optimal post-processing of WFAO data	157	52	33	27	45
20s3w2j6	Laser guide star adaptive optics at Lick Observatory	152	48	38	30	36
2mq8n4d4	First Results of the Ground Layer Adaptive Optics System ARGOS	149	31	81	13	24
4q40v3ft	Wavefront control simulations for the Giant Magellan Telescope: Field-dependent segment piston control	145	44	54	18	29
1pm0r30z	The Keck/DEIMOS Stellar Archive. I. Uniform Velocities and Metallicities for 78 Milky Way Dwarf Galaxies and Globular Clusters	142	42	52	23	25
1367c5xw	Anti-aliasing wave-front reconstruction with Shack-Hartmann sensors	140	35	38	21	46
4s5364qp	A Fresnel propagation analysis for SPEED (Segmented Pupil Experiment for Exoplanet Detection)	138	37	40	20	41
5q66922d	E-ELT M4 Unit updated design and prototype results	138	53	21	34	30
87f6s2zv	The GMT Dynamic Optical Simulation	135	32	57	9	37
8w80k9sp	An Integrated MASS/DIMM Monitor Based on a Low-Noise CCD Detector	135	44	27	28	36
6317r29b	Near-infrared tip-tilt sensing at Keck: System architecture and on-sky performance	134	34	34	28	38
7f60s89n	Optimizing use of multiple stars for near-infrared tip-tilt compensation at the W. M. Keck Observatory	133	24	47	18	44
20x7p7qb	Recent Improvements to the Keck II Laser Guide Star Facility	132	26	33	29	44
8sq053mx	Progress with the 4m high-order AO demonstrator, CHOUGH	131	36	34	23	38
8wj5p4cc	Modeling the pyramidal sensor by a ZEMAXTM user defined surface.	131	28	51	15	37
42h0n70s	Implementation of SLODAR atmospheric turbulence profiling to the ARGOS system	130	30	50	16	34

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